About ventilation
Fresh Air Heat Recovery Ventilation
Maximise Energy Savings with Lossnay Heat Recovery Ventilation
How Lossnay Saves on Energy Costs Compared to Traditional Ventilation
Mitsubishi Electric's Lossnay Fresh Air Heat Recovery Ventilation Systems do more than just improve air quality – they help create a healthier, drier, and more comfortable home while reducing energy costs of heating and cooling. Ideal for homes across New Zealand's diverse climates, these systems offer significant energy cost savings when compared to traditional ventilation.
By recovering heat energy from outgoing air, the Lossnay system pre-warms or pre-cools incoming fresh air, reducing the workload on your heating or cooling system. This means less power is required to maintain your desired indoor temperature, leading to noticeable reductions in your energy bills year-round.
Discover Lossnay Energy Cost Savings in Your Region
The following tables are based on real-world operation and highlight the potential savings when choosing Mitsubishi Electric's Lossnay Fresh Air Heat Recovery Ventilation compared to a conventional ventilation system with an electric heating/cooling device (COP of 1), delivering practical benefits for homes throughout New Zealand.
Potential Cost Savings
Select the island and model to find out your potential power savings.
North Island
South Island
LGH-35RVX3-E
Lossnay ERV (Energy Recovery Ventilation)
VL-350CZPVU-E
Lossnay HRV (Heat Recovery Ventilation)
The below power savings are based on comparing a conventional, continuously run ventilation system using an electric heating/cooling device (COP of 1) to a Lossnay LGH-35RVX3-E Energy Recovery System.
| Region | 1 Year | 3 Year | 5 Year | Power Savings of up to |
|---|---|---|---|---|
| Whangārei | $494 | $1,482 | $2,470 | 65% |
| Auckland | $583 | $1,749 | $2,915 | 66% |
| Hamilton | $870 | $2,610 | $4,350 | 70% |
| Tauranga | $820 | $2,460 | $4,100 | 70% |
| Rotorua | $1,190 | $3,570 | $5,950 | 72% |
| Taupō | $1,386 | $4,158 | $6,930 | 72% |
| Gisborne | $901 | $2,703 | $4,505 | 70% |
| Napier | $934 | $2,802 | $4,670 | 70% |
| New Plymouth | $964 | $2,892 | $4,820 | 71% |
| Palmerston North | $1,057 | $3,171 | $5,285 | 70% |
| Whanganui | $897 | $2,691 | $4,485 | 69% |
| Wellington | $1,148 | $3,444 | $5,740 | 71% |
The below power savings are based on comparing a conventional, continuously run ventilation system using an electric heating/cooling device (COP of 1) to a Lossnay LGH-35RVX3-E Energy Recovery System.
| Region | 1 Year | 3 Year | 5 Year | Power Savings of up to |
|---|---|---|---|---|
| Nelson | $1,193 | $3,579 | $5,965 | 72% |
| Blenheim | $1,320 | $3,960 | $6,600 | 72% |
| Westport | $1,096 | $3,288 | $5,480 | 71% |
| Christchurch | $1,497 | $4,491 | $7,485 | 72% |
| Hokititka | $1,286 | $3,853 | $6,430 | 71% |
| Kaikōura | $1,415 | $4,245 | $7,075 | 72% |
| Lake Tekapo | $2,277 | $6,831 | $11,385 | 74% |
| Alexandra | $1,621 | $4,863 | $8,105 | 73% |
| Timaru | $1,650 | $4,950 | $8,250 | 72% |
| Dunedin | $1,674 | $5,022 | $8,370 | 72% |
| Queenstown | $2,025 | $6,075 | $10,125 | 73% |
| Invercargill | $1,786 | $5,358 | $8,930 | 73% |
The below power savings are based on comparing a conventional, continuously run ventilation system using an electric heating/cooling device (COP of 1) to a Lossnay VL-350CZPVU-E Heat Recovery System.
| Region | 1 Year | 3 Year | 5 Year | Power Savings of up to |
|---|---|---|---|---|
| Whangārei | $558 | $1,674 | $2,790 | 70% |
| Auckland | $611 | $1,833 | $3,055 | 67% |
| Hamilton | $858 | $2,574 | $4,290 | 67% |
| Tauranga | $788 | $2,364 | $3,940 | 66% |
| Rotorua | $1,072 | $3,216 | $5,360 | 64% |
| Taupō | $1,178 | $3,534 | $5,890 | 61% |
| Gisborne | $804 | $2,412 | $4,020 | 61% |
| Napier | $797 | $2,391 | $3,985 | 58% |
| New Plymouth | $939 | $2,817 | $4,695 | 69% |
| Palmerston North | $972 | $2,916 | $4,860 | 64% |
| Whanganui | $835 | $2,505 | $4,175 | 63% |
| Wellington | $1,010 | $3,030 | $5,050 | 62% |
The below power savings are based on comparing a conventional, continuously run ventilation system using an electric heating/cooling device (COP of 1) to a Lossnay VL-350CZPVU-E Heat Recovery System.
| Region | 1 Year | 3 Year | 5 Year | Power Savings of up to |
|---|---|---|---|---|
| Nelson | $1,068 | $3,204 | $5,340 | 64% |
| Blenheim | $1,090 | $3,270 | $5,450 | 59% |
| Westport | $1,023 | $3,069 | $5,115 | 65% |
| Christchurch | $1,227 | $3,681 | $6,135 | 59% |
| Hokititka | $1,154 | $3,462 | $5,770 | 64% |
| Kaikōura | $1,137 | $3,411 | $5,685 | 57% |
| Lake Tekapo | $1,696 | $5,088 | $8,480 | 55% |
| Alexandra | $1,305 | $3,915 | $6,525 | 58% |
| Timaru | $1,373 | $4,119 | $6,865 | 60% |
| Dunedin | $1,361 | $4,083 | $6,805 | 59% |
| Queenstown | $1,558 | $4,674 | $7,790 | 56% |
| Invercargill | $1,521 | $4,563 | $7,605 | 62% |
How Lossnay Cost Savings are Calculated
Cost savings are calculated based on a comparison between a conventional ventilation system using an electrical heating/cooling device with a COP of 1, using thermistor-controlled operation to achieve desired set temperatures operating continuously (24/7) for 30 days a month versus a Lossnay Heat Recovery System.
The comparison assumes a standard 150m² home with an average ceiling height of 2.4m, maintaining indoor temperatures of 21°C in winter and 20°C in summer, while achieving an air change rate of 0.5 ACH (Air Changes Per Hour).
Actual savings may vary depending on factors such as insulation, occupancy patterns, outdoor climate conditions, and energy tariffs.
Models selected:
- ERV Application: LGH-35RVX3-E
- HRV Application: VL-350CZPVU-E
Energy Recovery (ERV) vs. Heat Recovery (HRV) – What’s the Difference?
Lossnay ERV systems feature a Permeable Core (Diamond Core Classic) allowing for both sensible heat energy (temperature only) and latent heat energy (moisture content) to be recovered.
Lossnay HRV systems, on the other hand, feature a treated Non-Permeable Resin Core (Diamond Core Plus) making them capable of recovering sensible heat energy only.
Lossnay HRV systems are therefore ideal for applications where air is being extracted from wet areas* including laundries or bathrooms.
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