ᐅ Electric heat pump with a seasonal performance factor (SPF) greater than 4.5 and gas heat pump with an SPF greater than 1.5. What are the costs?

Hello everyone!

How realistic are the following seasonal performance factors (SPF / coefficient of performance over a year):
electric heat pump: SPF > 4.5
gas-powered heat pump: SPF > 1.5

Do such heat pumps exist? How much more expensive are they compared to standard models?
What kind of SPF can you expect, for example, from a Viessmann Vitosorp 200-F?

Since April 1, 2015, new buildings can also qualify for funding through BAFA for heat pumps (search online for: BAFA Förderübersicht pdf 2015). The minimum funding amount is €4000-4500 (approx. $4300-4900), but only particularly innovative heat pumps are eligible, requiring a certain seasonal performance factor (see above).

Best regards
jx7

I haven’t fully grasped this yet, as the seasonal performance factor is not a fixed value but rather something very individual.

However, a heat pump with proper settings should achieve over 4.5 – I am currently waiting for the data on the new Vaillant Flextherm heat pumps, which I would like to purchase.

I am simply assuming they will be eligible for subsidies, but I hope they will have been certified by BAFA by then. Since precise details are not required in the application at this stage, I see good chances...

There is an annual performance factor calculator available online (Federal Heat Pump Association), where you can select the exact heat pump model you have. The coefficient of performance (COP) is then obtained from a table, and using some additional information, the annual performance factor can be calculated. In several example calculations with common ground-source heat pumps, I consistently found an annual performance factor above 4.5.

For gas-powered heat pumps (e.g., Vitosorp), there is no calculator available there yet. Therefore, I cannot assess whether the Vitosorp achieves 1.5.

Although this is an old topic, I have a quick question about it.
If I have already signed the contract with a supplier from whom I am purchasing a suitable pump, without applying for the subsidy, then am I no longer able to apply for the subsidy?
Do I understand this correctly?

That’s how it was explained to us – yes. Otherwise, just call Bafa directly – maybe something has changed, or it might still be accepted if you submit everything.

Is it worth it, or are the particularly innovative heat pumps also particularly expensive?

In that case, it might possibly be worth it for me to install a heat pump after all.