The most common objection to electric infrared heating is simple: electricity costs more than gas per kilowatt-hour. In Switzerland in 2025, residential electricity costs approximately CHF 0.28/kWh, while natural gas costs approximately CHF 0.12–0.15/kWh. That's a 2:1 price disadvantage for electricity before any other factor is considered.
But that 2:1 ratio is only part of the story. Independent academic research on ceramic infrared heating technology found that infrared panels require 66% less energy to deliver equivalent thermal comfort compared to a gas system. When you account for the energy reduction and the full cost of ownership — capital, maintenance, and operating costs over the system lifetime — the comparison looks very different.
This article uses real Swiss energy prices and academic research data on infrared technology to build a complete, transparent cost model.
The Assumptions
Swiss gas price: CHF 0.13/kWh (2025 residential average including distribution)
Swiss electricity price: CHF 0.28/kWh (2025 residential average)
Energy data: independent academic research on infrared heating technology (gas: 212 kWh/m²·yr; infrared: 71.21 kWh/m²·yr)
Gas boiler capital cost: CHF 8,000–12,000 (condensing boiler, installed)
Infrared capital cost: CHF 490/panel × 8 panels = CHF 3,920 + CHF 800 installation = CHF 4,720
Annual maintenance: Gas: CHF 250/yr (service + repairs). Infrared: CHF 0/yr (no moving parts)
System life: Gas boiler: 20 years. Infrared panels: 30+ years
These assumptions are conservative: they use mid-range capital costs for gas and do not include the cost of chimney maintenance, gas connection charges, or the CO₂ levy that is progressively increasing in Switzerland.
Annual Running Cost Comparison
| Cost Item | Gas Heating | Infrared (Grid) | Infrared (Solar) |
|---|---|---|---|
| Annual energy use (120 m²) | 25,440 kWh | 8,545 kWh | 8,545 kWh |
| Energy cost per kWh | CHF 0.13 | CHF 0.28 | CHF 0.06 (self-consumed solar) |
| Annual energy bill | CHF 3,307 | CHF 2,393 | CHF 513 |
| Annual maintenance | CHF 250 | CHF 0 | CHF 0 |
| Total annual cost | CHF 3,557 | CHF 2,393 | CHF 513 |
Even at full grid electricity prices, infrared heating costs CHF 1,164 less per year than gas for a 120 m² building — primarily because it uses two-thirds less energy. With solar self-consumption, the saving is CHF 3,044 per year.
Total Cost of Ownership: 20-Year Comparison
| Cost Category | Gas (20 yr) | Infrared Grid (20 yr) | Infrared Solar (20 yr) |
|---|---|---|---|
| Capital cost | CHF 10,000 | CHF 3,440 | CHF 3,440 |
| Boiler replacement (yr 20) | CHF 10,000 | CHF 0 | CHF 0 |
| Maintenance (20 years) | CHF 5,000 | CHF 0 | CHF 0 |
| Energy cost (20 years) | CHF 66,140 | CHF 47,860 | CHF 10,260 |
| Total 20-year cost | CHF 91,140 | CHF 51,300 | CHF 13,700 |
Over 20 years, infrared heating on the grid costs CHF 39,840 less than gas. With solar self-consumption, the saving grows to CHF 77,440. These are not projected figures — they are based on the independent academic research energy data applied to current Swiss prices.
The Payback Period
The capital cost of infrared heating (CHF 3,440 for 8 panels, installed) is significantly lower than a gas boiler replacement (CHF 8,000–12,000). This means infrared does not require a "payback period" in the conventional sense — you spend less upfront and less every year.
However, if your gas boiler is still functional and the question is whether to replace it now versus waiting for end-of-life, the analysis changes. The annual saving of CHF 1,164 (grid electricity) on a CHF 3,440 investment gives a simple payback of approximately 3 years. With solar electricity, the payback is under 2 years.
What the Independent Academic Research Actually Measured
The 66% energy reduction figure is not a manufacturer's claim. It comes from a 9-month monitored field study conducted by an independent academic researcher (Dr.-Ing. Peter Kosack) in real residential buildings with real occupants. The study measured:
- Energy consumption with gas heating: 212 kWh/m²·yr (annual extrapolation from 9-month data)
- Energy consumption with infrared heating: 71.21 kWh/m²·yr (same building, same occupancy pattern)
- No temperature stratification detected with infrared (key finding)
- Occupant thermal comfort ratings: equivalent between systems at lower energy input
The no-stratification finding is important. In gas-heated buildings, hot air rises and concentrates near the ceiling — where it does nothing for occupant comfort but contributes to heat loss through the roof. Infrared heating eliminates stratification by warming surfaces rather than air, which is a significant contributor to the energy reduction.
The CO₂ Levy Factor
Switzerland's CO₂ levy on fossil fuels is legislated to increase progressively. The current levy (2025) adds approximately CHF 0.02–0.03 per kWh to gas costs. Future levy rates are expected to rise significantly as Switzerland pursues its net-zero commitments. This makes the gas cost column in the tables above a conservative floor — the real future cost of gas heating in Switzerland is likely to be materially higher than the CHF 0.13/kWh baseline used here.
Getting an Accurate Quote for Your Building
The 120 m² example above uses the independent research energy consumption data, but the actual panel count and capital cost for your building depends on floor area, ceiling height, insulation level, and window area. We calculate this precisely for every enquiry.
SunWave Switzerland provides a free calculation service: share your building details and we return a room-by-room panel count, exact capital cost, annual running cost estimate, and payback period — within 24 hours.
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