Camp Glenorchy

Glenorchy

Camp Glenorchy

New Zealand’s First Net Zero Energy Accommodation.

CAMP GLENORCHY PROJECT A “ONCE-IN-A-LIFETIME OPPORTUNITY FOR MOST COMPANIES”

Described as “An exemplar application of technology to achieve zero energy”, Camp Glenorchy Eco Retreat is a true living marvel, and we say “living” for a reason. The camp is New Zealand’s first Net Zero Energy accommodation and is designed to the Living Building Principles challenge. The winner of multiple, prestigious awards such as Time Magazine’s “The World’s Greatest Places of 2019” and New Zealand Tourism Industry Aotearoa’s “Sustainability Innovation Award 2019”, Camp Glenorchy is a testament to the innovative spirit of all who played a part in bringing the project to life.

Wanaka-based Optum Plumbing and Energy Solutions was engaged to complete all plumbing, draining, heating and solar work, for Camp Glenorchy. In accordance with the Living Building Challenge – one of the most challenging certifications to achieve in the area of environmental building design – the goal for Camp Glenorchy was to use 50% less water and 50% less energy than standard accommodation facilities worldwide. The plumbing requirements were highly specialised, and when Optum Plumbing shouldered the enormous task of installing all plumbing, drainage, solar and heating for the campsite, the outstanding result of their efforts earned them the 2018 Project of the Year award at the New Zealand Plumbing Awards.
Queenstown Plumbing

Local operator, Optum was a natural choice to implement designer, Steve Jarvis, of HDS,’ vision for the infrastructure. Being leaders in sustainable energy solutions in the region, Optum had a high level of experience with all renewable systems involved. The project required a working-knowledge of a wide variety of systems including solar hot water, ground-source heating, wastewater, photovoltaic solar, rain water-harvesting and water treatment and filtration, and Optum Managing Director, Kevin Henderson, is extremely proud of the role he and his staff played in the establishment of this world-renowned campsite.

“The layout and design had to be strictly adhered to, as every litre of water, flow rate, pipe diameter, every pump, every watt of power, everything had to be accounted for, to maintain the Living Building Challenge Approach that our clients wanted.”

Alongside the elaborate design, one of the biggest challenges Optum faced was the sourcing of components from as far away as Europe, and the installation of the system in extreme and adverse weather conditions. Components had to be ordered well in advance to ensure there would be ample time for deliveries to arrive from abroad, while also keeping track of stock sourced in New Zealand. The logistics then had to be meticulously planned so that all components required for a certain installation could be transported the remaining 40km from the closest major town to the remote build location, with everything arriving on time and in order. To add to the logistical challenges, the extreme weather experienced by that part of the country made flexibility and innovation a must when working to conditions.

Queenstown Plumbing and Heating

Optum’s contribution was a keystone of the project success, and a shining example of the capabilities and resourceful attitude of the company. Described by Henderson as “A once-in-a-lifetime opportunity for most companies”, the project stands as the most exciting and compelling case-study a plumbing and energy company could ever demonstrate.

REFERENCES

https://www.scoop.co.nz/stories/BU1908/S00159/camp-glenorchy-eco-retreat-wins-tia-award.htm

https://www.revolveenergy.co/glenorchy

https://www.ivoryegg.co.nz/news_items/knx-award-2018-new-zealand-project-camp-glenorchy-to-win-the-people-s-choice-award

http://qt.co.nz/time-names-camp-glenorchy-one-of-worlds-100-greatest-places/

https://issuu.com/nzplumber/docs/nz_plumber_june-july18_lo-res/28?ff

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Northlake Residence

josh-withers-PRI5hU0_KL4-unsplash

Northlake Residence

Heating Type: Radiators, Wood Fire
Heat Source: Gas Boiler, Wetback
Other: Rotex

NEW HOME AND NEW SMART-HEATING IN NORTHLAKE

This brand new 260sq/m home in Northlake, Wanaka houses one of the most low-cost and low-maintenance heating and hot water solutions we could come up with, and it’s environmentally-friendly too! Our client is a builder who invited us onto the project very early on. We set to work from the very first design stages of the build, allowing us to design the perfect heating system for the client brief, while also providing our Total Package service (includes drainage and plumbing).

OUR CLIENTS LOVED THE RESULT…
“We engaged Optum Plumbing right at the beginning of our design stage for our new home, this resulted in an efficient, energy saving and optimum heating system.”
“We like that our system combines our wetback and solar power to get the best advantages from all the systems combined”.

HERE’S HOW WE DID IT:

We designed the perfect system for our clients by installing a thermal store, radiators, underfloor heating, a wood fire with a pumped wetback system, a gas hot water heater, thermostats, a control hub, and solar (installed/supplied by another).

The wood fire provides hot water when the fire is burning, and the solar system is also able to heat water when excess power is being generated.

One really fun addition to the system was the Neohub control hub, which allows our clients to control the central heating using their smartphones.

WHAT DOES IT COST TO RUN?

Combined gas/firewood costs are approximately $350 per month during winter for both central heating and domestic hot water. The radiators and underfloor in the bathrooms/office are set to come on twice a day at a set time.

MAINTENANCE REQUIREMENTS

To keep the system running at its best, it is important to maintain it well. The maintenance of this system simply requires an annual service by a certified technician and occasional client maintenance.

• Technician maintenance – this is a very low maintenance system, however we recommend a technician checks the radiators are balanced and inhibitor is topped up pre-winter, this costs approximately $200 + GST.

• Client maintenance – the pressure in the system needs to be kept topped up for the system to operate. Occasionally, this may drop and need to be topped up. This is a 10-minute task, and we provide our clients with a manual specific to their system with instructions on how to do this. The filters in the Rinnai also need cleaning periodically.

INTERESTED IN HEATING YOUR OWN HOME?

If you’re interested in any of the systems described in this case study, reach out and we can discuss options to help you heat your own home!

Northlake
Northlake

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Studholme Rd Residence

Solar PV

Studholme Road Residence

Heating Type: Radiators, Wood Fire
Heat Source: Wetback, Solar Thermal
Other: Rotex, 3.5kw Solar PV

SUSTAINABLE HEATING IN STUDHOLME

With sustainable and environmentally-friendly design the brief for this gorgeous new build, it was no surprise when our sole resident client, an architectural designer, reached out with a specific vision. We provided our Total Package service, including heating, plumbing and drainage, and the client requested that a wood range/boiler in the kitchen be a functional part of the heating system. We were able to design an impressive integrated system according to the requested specifications for the brand new 160sq/m home, and we’re excited to showcase the results.

HERE’S HOW WE DID IT:

The central heating and domestic hot water system revolves around a 500L thermal store which collects the energy from various sources and disperses the heated water to the central heating (radiators) and domestic hot water. The system energy sources are;

• A wetback from the kitchen wood range
• Solar heating
• An electric element

The kitchen wood fire/boiler produces hot water when the fire is on via the wetback. It contributes considerably towards the heating of the thermal store.

The radiators act as a ‘heat dump’ for the thermal store, so if the fire is on and the thermal store tank gets above 70°c and the hot water is not being used for domestic purposes, the central heating pump will pump water to the radiators, which will come on. The radiators are controlled individually, by the thermostatic radiator valves (TRV’s) located on each radiator. The radiators are adjusted in temperature or turned off completely by the valves. If the radiators are turned off completely (e.g. throughout summer months), the central heating pump circulates the hot water for the central heating system through the bypass, rather than to the radiators.

The solar panels also contribute to the heating of the thermal store during sunlight hours. The solar thermal panels work by collecting heat directly from the thermal panels and transferring it to the hot water cylinder through a flow and return. As the solar thermal panels may bring the thermal
store over 70°c during sunnier months, the radiators will need to be turned off at the individual thermostats to ensure they don’t come on.

The thermal store also has an electric heating element which draws energy from the solar or from the grid to heat water for tank if the other heat sources have not generated enough heat to bring it up to 60°c. If the thermal store is already at the required temperature, any excess power generated by the solar panels will be exported back to the grid and show as a credit on the clients power bill.

MAINTENANCE REQUIREMENTS

To keep the system running at its best, it is important to maintain it well. The maintenance of this system simply requires an annual service by a certified technician and occasional client maintenance.

• Technician maintenance – this is a very low maintenance system, however we recommend a technician checks the overall system operation pre-winter, this costs approximately $200 + GST and includes topping up inhibitor, balancing radiators and checking system pressure. Solar Thermal panels need virtually no maintenance (a glycol check every 5 years is recommended) and Solar PV requires no maintenance.

• Client maintenance – the pressure in the system needs to be kept topped up for the system to operate. Occasionally, this may drop and need to be topped up. This is a 10-minute task, and we provide our clients with a manual specific to their system with instructions on how to do this.

INTERESTED IN HEATING THIS WAY?

If you’re interested in any of the systems described in this case study, reach out and we can discuss options to help you heat your own home!

Photovoltaics

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Northlake Road Residence

patrick-hendry-ZkS4qcldEIU-unsplash

Northlake Rd Residence

Heating Type: Underfloor
Heat Source: Ground Source HP
Other: Rotex

NORTHLAKE GETS GROUND-SOURCE HEATING IN THIS NEW HOME BUILD

This brand new 250sq/m home houses one of our most exciting, environmentally-friendly heating solutions. Our clients came to us with a plan: they wanted to install a system that could provide ambient, comfortable heat throughout the entire house, without the high electricity bills that came with their last home (running an air-to-air heat pump). Given their goal, our clients had researched and chosen a remarkably efficient and sustainable geothermal heating system called ground source heating, and we were super excited to help them bring the project to life.

Ground-source (geothermal) heating works by water flowing through a series of pipes run below ground (called slinkys). The natural ground temperature heats the water which then passes through a heat pump to increase the temperature to a point it can be used for the central heating. As the earth temperature remains at a constant, the ground source heat pump is not affected by extremely cold temperatures. Due to the high efficiency of the system and lack of fossil fuels used to heat the water, a ground source system is considered to be one of the most environmentally friendly forms of heating.

Now that we knew what our clients wanted, it was our job to bring their vision to life, so we got to work. We organised the specific system design, performed all of the necessary heating calculations, and designed the house with passive heating principles and good insulation to ensure maximum system efficiency.

OUR CLIENTS WERE STOKED…
“The Optum team were really great when we were planning our new home and clearly understood the reasons we wanted a ground Source/underfloor solution. They worked well with both our designer and builder, and we’re really stoked with the result. The house is warm and comfortable, and the system works as promised. It’s low-cost to run and environmentally-friendly too!”

“We love how the rooms and floors are always a comfortable temperature. It’s very low-cost to run, and we barely think about it. We used to be concerned about running the air source heat pump in our old house, as it used a lot of power, but now we don’t have to worry about it.”

HERE’S HOW WE GOT THE JOB DONE:

The system we designed divided the house into seven underfloor heating zones to provide efficiency and flexibility. Each zone is controlled by a programmable thermostat, and when the air temperature in a zone drops below the set temperature on the thermostat, that section of underfloor heating will turn on.

In addition to the highly effective central heating system, we also installed a thermostat-controlled radiator in the laundry room and a wood fire for ambience in the lounge. These two installations allow a final level of flexibility in the heating system, however, our client hasn’t bought any new wood in over two years! In winter, they occasionally light the fire if they want a direct heat source, or ‘top up’.

WHAT DOES IT COST TO RUN?

To give you a realistic running cost estimate, our clients’ largest electricity bill was around $400 for the month of June. The heat pump is a highly efficient method of water heating, making the system comparatively very low-cost to run with a higher capital cost.

MAINTENANCE REQUIREMENTS

To keep the system running at its best, it is important to maintain it well. The maintenance of this system simply requires an annual service by a certified technician and occasional client maintenance.

• Technician maintenance – all central heating systems should be serviced annually to maintain efficiency. An average heat pump service costs $250 + GST.

• Client maintenance – the pressure in the system needs to be kept topped up for the system to operate. Occasionally, this may drop and need to be topped up. This is a 10-minute task, and we provide our clients with a manual specific to their system with instructions on how to do this.

INTERESTED IN GROUND SOURCE HEATING?

If you’re interested in any of the systems described in this case study, reach out and we can discuss options to help you heat your own home!

Northlake Road

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Mt Barker Residence

Mt Barker Off Grid House

Mt Barker - Off Grid

Heating Type: Radiators, Wood Fire.
Heat Source: Solar, Wood, Gas.
Other: Rotex

FROM HOLIDAY HOME TO FOREVER HOME WITH BRAND NEW HEATING

This stunning 200sq/m house in Mt Barker, Wanaka now boasts a brand new heating and hot water system. Originally used as a family holiday home, our clients came to us with the hope of turning it into their permanent residence one day if we could help them find a responsive and sustainable solution for heating and hot water.

Utilising an exciting combination of smart technologies and sustainable natural resources, this newly heated home now has all the comfort of a grid-connected section while harvesting the renewable energies available to the rural property.

OUR CLIENTS ARE THRILLED…
“Just wanted to convey our thanks to you and your team for your contribution to our project. It has been, overall, as straightforward as it could possibly have been-although the complexities of an off-grid system have at times seemed daunting! Kurt and all the others have always been obliging and helpful-including with the ongoing fine-tuning of the system.”

HERE’S HOW WE DID IT:

The system we designed had to be sustainable, responsive and off-grid, so we highlighted the beautiful, rural location of the property, and put all natural resources to use. Our design incorporates solar power, a wood fired boiler, gas water heating and energy efficiency heat storage, and by installing underfloor heating, radiators and reliable hot water, we have successfully heated the entire home.

For energy efficiency and responsiveness, we installed a system that would provide a multitude of adjustable heating options. The main living, dining, kitchen, atrium/entry, library, hallway, mudroom, bathroom and en-suite are heated by underfloor pipe work to provide low temperature heating to the main areas. To provide flexibility to the heating, the three bedrooms have radiators that can provide a quick response when needed as not all of the rooms will be used. The wood fire provides another level of flexibility, heating the dining/kitchen, and there is an Escea gas fire in the living room for low energy, quick heat, or just for ambience if needed.

THE HEATING SYSTEM – Thermal Store/Wood Fire/Solar/Gas

We used a thermal store to create a central hub for all heating and hot water. The Rotex Sanicube thermal store can collect the energy from various sources and deliver the heated water to various locations/requirements. We installed solar hot water heating to provide hot water to the thermal store in summer, and we put in a wood-fired boiler to be the source of hot water in winter.

The wood fired boiler has an attractive glass front and looks the same as a normal freestanding fire, but it has the ability to heat water along all remaining three sides. We chose the Thermalux Linea fire, which is able to generate up to 20kW of hot water quickly and deliver up to 8kw of heat to the room. The heated water is delivered to the previously mentioned thermal store by a low energy pump (this can be done by gravity if close enough) and heats the thermal store directly without a heat exchanger.

The solar system is also connected to the thermal store as an additional/back-up/quick recovery heat source. The photovoltaic solar panels also provide all the energy to power the home, while batteries charged by the panels store extra power for the evenings. Any excess energy from the solar is directed to the thermal store to act in effect as another “battery”, utilising the excess energy to generate hot water.

The gas water heater makes up the final component of the heating system, connected to the thermal store and providing back-up hot water for when the solar and wood-fired water heating systems are lacking. Together, all components of the heating system ensure consistent and responsive hot water and heating year-round.

ENERGY EFFICIENCY

All power generation and consumption need to be monitored carefully to make sure the home can have continuous power; and careful selection of energy efficient appliances, LED lighting, low-energy pumps and gas cooking was required at the very beginning of the planning process with the clients and architects.

The architects ensured the home has high insulation values, with R4 in the walls and R5 in the ceilings, and high quality windows and doors to minimise heat loss. The orientation of the home also maximises the sun available in summer and winter.

RAINWATER HARVESTING

To further the sustainability of the home’s heating system, most of the rainwater from the roof is collected in an in-ground water tank to use for domestic and irrigation purposes. This helps minimise the use of the solar bore water pump.

LET US HELP YOU HEAT YOUR HOME

If you’re interested in any of the systems described in this case study, reach out and we can discuss options to help you heat your own home!

Thermalux linea 20 wood boiler

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West Meadows

West Meadows

West Meadows Residence

Heating Type: Underfloor.
Heat Source: Air to Water Heat Pump.
Other: Rotex, 5kw Solar PV

WELL-DESIGNED HOME HEATING IN WEST MEADOWS

This exceptionally designed permanent residence in West Meadows houses two clients who came to us with a very specific brief. They wanted an energy efficient, low-cost system, with a low environmental impact to heat their 325sq/m home. With their input, and working alongside architect, Chris Prebble, of Three Sixty Architecture, we refined and designed a high-end system which met this brief. We also did the plumbing and drainage for this home, completing our Total Package service.

OUR CLIENTS…
“We are thrilled to now have everything operating so well, with power accounts a delight to receive in this highly specified energy efficient home of the future”.

HERE’S HOW WE DID IT:

The high-end central heating and hot water system that we designed incorporates a thermal store, air-to-water heat pump, solar and an electric element.

The thermal store collects the energy from various sources and disperses heated water to various other sources. The tank allows hot water to be stored at various temperatures within the single container, allowing the use of various heating and hot water requirements to be met with maximum efficiency e.g. the bottom of the tank is 30-40°c (used for underfloor heating with the lower temperatures, pools and spa pools), middle/top of the tank 40-60°c (used for domestic hot water and any other high temperature appliances).

The energy sources for the thermal store are solar, an electric element, and an air-to-water heat pump. The system has been set up to maximise the use of the solar first, then use the air-to-water heat pump to make up the temperature difference.

The solar system also provides for all of the energy requirements of the home, generation and consumption are measured, and any excess power is directed to the thermal store. If there is any further excess after the home and hot water has been taken care of, only then is the generated power exported to the grid.

The electric heating element draws energy from the solar, or from the grid, to heat the hot water for the top and middle of the tank with a lesser amount at the bottom of the tank.

The ring main has a Grundfos comfort pump installed on the hot water line. The ring main pump has a memory which picks up the daily usage and activates the pump prior to the normal usage time and turn off when the water is no longer required. This is to minimise heat loss from the heat source (thermal store) and save energy for hot water recovery and pump running time.

WHAT DOES IT COST TO RUN?

The client only leaves the underfloor heating on in the areas they are living in, set to 21°c. As this is a reasonably new home, exact running costs haven’t been determined yet but we will have some specific data next year. The client is going to put insulated boxes around the exterior pipes (these are already lagged but losing some heat) which should increase efficiencies.

MAINTENANCE REQUIREMENTS

To keep the system running at its best, it is important to maintain it well. The maintenance of this system simply requires an annual service by a certified technician and occasional client maintenance.

• Technician maintenance – all central heating systems should be serviced annually to maintain efficiency. An average air-to-water heat pump service costs $200 + GST.

• Client maintenance – the pressure in the system needs to be kept topped up for the system to operate. Occasionally, this may drop and need to be topped up. This is a 10-minute task, and we provide our clients with a manual specific to their system with instructions on how to do this.

INTERESTED IN LOW ENVIRONMENTAL IMPACT HEATING?

If you’re interested in any of the systems described in this case study, reach out and we can discuss options to help you heat your own home!

West Meadows Underfloor Heating 2
Plumbing for Residential Builds

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Beacon Point Residence

Beacon Point road

Beacon Point Residence

Heating Type: Radiators, Wood Fire.
Heat Source: Gas Boiler.

A LOW-MAINTENANCE CENTRAL HEATING SYSTEM

As a visually stunning residence, this architectural delight of a home deserved an equally impressive heating system. We actually came on board to help our clients with a total package service, offering heating, hot water, plumbing and drains services, but we are particularly excited to showcase our cost-effective, low maintenance central heating system.

The beautiful 353sq/m Wanaka home needed a heating system that would be easily maintained and easy to use, while also being cost-effective year-round for our two resident clients. To achieve this aim, we designed a simple system that utelised thermostats to set and automate both the heating of the house and the generation of hot water.

OUR CLIENTS LOVE THE SYSTEM…
“Radiators are great. Once set up, the system runs itself. We wouldn’t install trench heaters again, radiators are fine on their own.”

HERE’S HOW WE DID IT:

We installed a gas boiler, radiators and a hot water cylinder and used programmable thermostats for automation.

The gas boiler heats water for the radiators and domestic hot water supply. Thermostats on the radiators or hot water cylinder trigger the gas boiler to turn on when they call for heat.

The radiators provide the heating for each room. We chose the programmable Neostat Thermostat to control the system and positioned it in the hallway. When the air temperature in the hallway drops below the set temperature on the thermostat, the radiators turn on. To allow for personal preference and flexibility in the heating system, each radiator can also be individually controlled by the thermostatic radiator valve (TRV) located on each unit.

The hot water cylinder provides the hot water for domestic use and is controlled by a built-in cylinder thermostat – which is left on permanently. The gas boiler generates hot water for the cylinder as determined by the cylinder thermostat.

WHAT DOES IT COST TO RUN?

Due to the addition of the thermostats, the central heating system in this home is pretty cost effective! The radiators are set to come on in the early mornings and early evenings, so the home is only heated when and where you need it. For both central heating and domestic hot water, gas costs total approximately $200-$300 per month during winter and $100-$200 during summer.

MAINTENANCE REQUIREMENTS

To keep the system running at its best, it is important to maintain it well. The maintenance of this system simply requires an annual service by a certified technician and occasional client maintenance.

• Technician maintenance – all central heating systems should be serviced annually to maintain efficiency. An average gas boiler service costs $250 + GST.

• Client maintenance – the pressure in the system needs to be kept topped up for the system to operate. Occasionally, this may drop and need to be topped up. This is a 10-minute task, and we provide our clients with a manual specific to their system with instructions on how to do this.

LOOKING FOR CENTRAL HEATING?

If you’re interested in any of the systems described in this case study, reach out and we can discuss options to help you heat your own home!

Beacon Point road
Beacon Point Road
Beacon Point Road Fire

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Camp glenorchy project a “once-in-a-lifetime opportunity for most companies”

Glenorchy

Camp Glenorchy Project

a “once-in-a-lifetime opportunity for most companies”

Posted 19 May 2020 by Optum

Described as “An exemplar application of technology to achieve zero energy”, Camp Glenorchy Eco Retreat is a true living marvel, and we say “living” for a reason. The camp is New Zealand’s first Net Zero Energy accommodation and is designed to the Living Building Principles challenge. The winner of multiple, prestigious awards such as Time Magazine’s “The World’s Greatest Places of 2019” and New Zealand Tourism Industry Aotearoa’s “Sustainability Innovation Award 2019”, Camp Glenorchy is a testament to the innovative spirit of all who played a part in bringing the project to life.

Optum Plumbing and Energy Solutions was engaged to complete all plumbing, draining, heating and solar work, for Camp Glenorchy. In accordance with the Living Building Challenge – one of the most challenging certifications to achieve in the area of environmental building design – the goal for Camp Glenorchy was to use 50% less water and 50% less energy than standard accommodation facilities worldwide. The plumbing requirements were highly specialised, and when Optum Plumbing shouldered the enormous task of installing all plumbing, drainage, solar and heating for the campsite, the outstanding result of their efforts earned them the 2018 Project of the Year award at the New Zealand Plumbing Awards.

Local operator, Optum was a natural choice to implement designer, Steve Jarvis, of HDS,’ vision for the infrastructure. Being leaders in sustainable energy solutions in the region, Optum had a high level of experience with all renewable systems involved. The project required a working-knowledge of a wide variety of systems including solar hot water, ground-source heating, wastewater, photovoltaic solar, rain water-harvesting and water treatment and filtration, and Optum Managing Director, Kevin Henderson, is extremely proud of the role his team played in the establishment of this world-renowned campsite.

Queenstown Plumbing and Heating
“The layout and design had to be strictly adhered to, as every litre of water, flow rate, pipe diameter, every pump, every watt of power, everything had to be accounted for, to maintain the Living Building Challenge Approach that our clients wanted.” Alongside the elaborate design, one of the biggest challenges Optum faced was the sourcing of components from as far away as Europe, and the installation of the system in extreme and adverse weather conditions. Components had to be ordered well in advance to ensure there would be ample time for deliveries to arrive from abroad, while also keeping track of stock sourced in New Zealand. The logistics then had to be meticulously planned so that all components required for a certain installation could be transported the remaining 40km from the closest major town to the remote build location, with everything arriving on time and in order. To add to the logistical challenges, the extreme weather experienced by that part of the country made flexibility and innovation a must when working to conditions.

Optum’s contribution was a keystone of the project success, and a shining example of the capabilities and resourceful attitude of the company. Described by Henderson as “A once-in-a-lifetime opportunity for most companies”, the project stands as the most exciting and compelling case-study a plumbing and energy company could ever demonstrate.

Leading the way with heat pump technology

Leading the way

with heat pump technology

Posted 11 March 2020 by Optum

Our brief for this stunning Jack’s Point home was clear; the heating system needed to seamlessly meld into the home design in both aesthetics and operation, while retaining a high level of efficiency for both underfloor heating and domestic hot water.

THE SOLUTION

The home is spacious, with underfloor heating throughout and four bathrooms utilising on-demand hot water, so the heat source is sized accordingly. The system includes 2 x Stiebel Eltron 16kw Internal Heat Pumps, connected to a 700L buffer tank and 500L domestic hot water system.

The key to subtlety

Understandably, our client wanted to keep visual and sound impact to a minimum. This was made possible by the product specified; Stiebel Eltron provide highly specified, quality heat pumps that are extremely quiet to run. The heat pumps are installed in a basement below the house with direct ducting and extraction to the outside.

Jacks Point

How it works

Underfloor heating: The 700L buffer tank is heated to 40°c for the underfloor heating. Using a large buffer tank increases system efficiency by minimising the running time of the heat pumps i.e. the heat pumps run long enough to heat the tank, then run cold during the day when the air temperature is warmer.

Domestic hot water: The 500L hot water cylinder is heated directly by the heat pumps to 60°c. A large cylinder was chosen to accommodate hot water usage and the heat pump always heats domestic hot water as the priority. There’s also a 6kw electric element in the cylinder if back up is required, so no risk of a cold shower!

Here’s the plant room:

System control

We like to keep heating control simple and user-friendly with the additional benefit of controlling remotely. We installed Heatmiser Neostats into each room, connected to the wifi via a Neohub unit, allowing each room to be controlled individually via the NeoApp smartphone app. Whether our client wants to adjust room temperature or set on/off times, all the operation can be done on a smartphone prior to arrival – smart technology to maximise comfort.

Monitoring technology

This system showcases advanced heating technology from a monitoring aspect. The system is connected to an internet based ISG Gateway controller, allowing our heating technicians to monitor system efficiency and make subtle adjustments to the operation, without needing to attend site. This new, improved technology allows us to provide our client with a personalised service and reduces the need for costly call-outs.

Want to learn more?

If you’d like to know more about the heating systems we install, please don’t hesitate to get in touch – we pride ourselves on delivering high end, efficient systems that meet the specific needs of architectural builds in the Queenstown-Lakes area.

Harness the sun’s energy with solar

Solar PV

Harness the sun's energy with solar

Posted 27 November 2019 by Optum

Central Otago, Wanaka and Queenstown all have the most beautiful bright sunny days. The weather in our region is perfect for harnessing the energy from the sun and turning it into power or home heating. Solar solutions are smarter, cheaper and build value in your home.

We work with Sunz Energy technology to design and install your solar system. We aim to provide your energy requirements, lower your carbon footprint and give you better savings in the short term and better return in the long run.

​Benefits of solar

Energy savings

You can save on the power bill by installing an efficient and effective solar energy system. Your savings start immediately protecting you from rising electricity costs. A Sunz system can supply up to 90% of your hot water and we estimate your bill can be reduced by about 35%. Depending on the size of your home you could have the system paid off within 6 years.

Long-term value
Installing a solar system is a smart way to invest in your own home. Low energy homes are becoming more popular as government schemes come in to play and people are looking for alternate solutions to living independent of power systems.

How solar works

The most simple and cost-effective type of solar system is a grid connected, or grid-tied, solar panel system. You may have seen them on roofs. They are made up of two main components, the solar panel and the inverter.

Solar panels take sunlight and convert it into DC electricity; the inverter turns DC electricity into AC electricity you can use. A grid connector system will export excess power to the grid in the day, then at night (when the panels are not producing power) energy will draw back from the grid. Check out this little video to get the idea:

Quality systems, design, install, save

We work with Sunz Energy to provide quality systems; they were ranked as one of the top two performing units in an independent performance report for the EECA grant scheme!

We have a particular interest in solar energy here at Optum; we have qualified solar specialists who look after installation right through to connection. We custom design a plan to suit your energy needs. We install only the leading technology and we will assist with the required paperwork and inspections to get your system up and running and set for life.

So if you want to make the most of summer, chat to us about solar solutions today. They are smarter, better for the environment, save you money and add value to your home.

Read more about our solar systems