Exotic combination: wood pellets + exhaust air heat pump? [fr]Combinaison exotique : granulés de bois + pompe à chaleur à air évacué ?[/fr] [hi]अजीब संयोजन: लकड़ी के पेललेट + निकासी वायु हीट पंप? [in]Kombinasi eksotik: pelet kayu + pompa panas udara buang? [zh]异国组合：木质颗粒 + 排气热泵？[/zh] [ru]Экзотическая комбинация: древесные пеллеты + вытяжной тепловой насос? [es]¿Combinación exótica: pellets de madera + bomba de calor de aire de escape?

2020-08-01 12:16:42

Determine the heating load and insulation of the house, before you have that you cannot decide what is better. After all, it is about 290 m2. There are also radiators for lower flow temperature. If gas is available at the house, I would prefer that over a pellet heating system.

2020-08-01 22:01:59

Actually didn't want to replace the radiators

2020-08-01 22:18:25

Why actually no gas?

2020-08-01 22:36:03

I actually didn't want to change the radiators

But install an insanely expensive new heating system? The radiators are cheap and replacing them is still the cheapest part. You can even do it yourself with one and a half left hands.

2020-08-01 23:12:19

Fancy radiators also cost money.

I would definitely go with gas here.
Depending on the insulation and required heating load, a standard heat pump.

Anyway, this is a clear case for a proper energy consultant or a good installer who knows how to calculate it properly.

2020-08-02 00:38:24

My first thought is, with what heating water temperature are the current radiators operated. Only with this information can further planning be done. The information is even more valuable than the calculated heating load, since you do not want to replace the radiators.

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