Combine air-water heat pump with water-carrying wood stove

  • Erstellt am 2020-03-29 14:13:41

Joedreck

2021-03-16 20:07:39
  • #1
No one mentioned a deep borehole here. Please post a full cost calculation here. That’s the best way to assess economic efficiency.
 

nordanney

2021-03-16 20:14:52
  • #2
So basically a custom solution that is bad for the property, but sensible in absolute exceptional cases. I didn’t say that. But every normal person has to buy their wood, and therefore it is an economic decision whether to use a water-based stove if heating via a heat pump is effectively cheaper. The fireplace is there occasionally for a nice atmosphere. It doesn’t run every evening throughout winter. That’s the difference compared to you. How about selling the wood and installing a proper heating system? That should be the more worthwhile investment at the end of the day. For the price you mentioned alone, I can get four complete heating systems as air-water heat pumps. Only assembly costs remain or, like many others, self-labor.
 

GSGaucho

2021-03-16 20:21:09
  • #3
With 270 m2 of heated space, a brine pump with deep drilling would have been the alternative for ME, then without a wood stove. Wood is not an option at all. I am getting old as well. The full cost calculation is currently simple for me: 880 buffer at the highest insulation level 300 return flow elevation with pump 1,200 additional costs heating boiler 200 circulation pump heat pump to buffer 120 two expansion vessels around 600 for pipes, fittings, safety valves, etc. These add up to around 3.5k in total. Whether they pay off in 10 years or never really doesn’t interest me. That’s not even half a percent of the total construction costs including the land. Anyone who lets the entire installation be done by the heating engineer or has no idea about hydraulics, soldering, or resistance of a PT1000 probe might be better off avoiding it. That may be.
 

GSGaucho

2021-03-16 20:28:07
  • #4
In the forest, it is not my wood, but it becomes mine when I take it out. But even if it were mine, why should I produce wood to sell it? I have no tractor and no winch either. The 18k come from my immediate neighbor. Whether that is a lot or a little, I don't know. The only stupid thing about him was that he missed the subsidy, or his architect or general contractor did, who knows.
 

T_im_Norden

2021-03-17 09:10:53
  • #5
In the hydraulic diagram you posted. If you don’t have a mixer, at what temperatures do you go into the underfloor heating?
 

nordanney

2021-03-17 09:36:47
  • #6
So you’re stealing wood from someone else’s forest, or how am I supposed to understand that?
 

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