[jeroenhd]

While heat pumps tend to pay themselves back by simply being one of the most efficient methods of heating possible, they do require a large investment upfront. With the current economic situation, it makes sense that fewer people are willing to make such an investment. You could of course get a loan, but not everyone is interested in getting themselves into any kind of financial risk when cost of living is up and wages are lagging behind.

ROI depends heavily on the amount of solar power you can also invest into, the weather, and fossil fuel prices. Right when fossil fuel prices spiked because of Russia's invasion, getting a heat pump was a no brainer, because the difference between electricity and fossil fuel prices took months or more off the time to earn back the heat pump investment, but now that fuel prices are dropping back to normal, the equation changed.

[DraperMD]

The problem is that an outdated inefficient Rankine Refrigerant Heat controls 99% of the market and in extreme climate temperatures (High Delta Ts) the Rankine COP efficiencies are 0-1 in the example of - or + 10-20C , virtually useless and use excess Kwh. The HVAC OEMs are about the slowest good ole boys to adapt or innovate. Our co, Sencera (sincere.com) is mfg the 1st Stirling Heat Pump that replaces Rankine Refrig Heat Pumps @same and delivers 30% HIGHER COP efficiency over Rankine Heat Pumps and is performs even better in extreme cold/hot climates. Trust and used by NASA Stirling was previously known as super expensive and used in the RPS systems in the Space shuttles. We reconfigured Stirling to be low cost ($600 mfg cost 3 Tom/10Kwh Units) with a Patented all Rotary design and utilize Helium or Nitrogen(NON toxic and NON flammable) with working prototypes with independent lab verified COP efficiencies HIGHER than Rankine. In 2024 you'll see the comm'l entry of our 1st Home Units then we scale to EVs and Comm'l Cold Chain apps. Since 100% of every Rankine Heat Pump leaks in all Homes, Schools, Hospitals and Businesses and depends on Refrigerants, the lazy HVC market's new spin is "sustainable" Refrigerants, such B.S, they contain harmful CFC/HFCs or in Europe you have R-290, a Propane derivative, try lighting a match next to it and see what happens:). The Industry is so old and apathetic it's going to see a refreshing disruptive change maker in Stirling as an end user option that can serve Colder/otter climates and significantly reduce Kwh/Utility Bills. [e-mail]

[DraperMD]

BTW, when Daikin or Carrier or anyothers sell their Heat Humps at COPs of 5 based on a SEER Rating, you can laugh....it's a blended rate and represent ZERO integrity to the actual Heat Pump performance in extreme temps....how did this happen? ASHRAE , SEER Rating are all sponsored and created by WHO? The HVAC good ole boys....so they are blatantly overselling HYPED COP efficiency that are actually 25% of their real COP....we've tested Daikin the highest selling Home Heat Pump units in Spain lab and the results were clear at -20C the COP was 1.25 but SEER Rating star it's 5. If the general public only kew the facts :)

[smooc]

Of course. But if you can make the investment then the yield is more important to compare it against other investments.