schlckr7
2020-03-01 16:54:20
- #1
Hi Forum,
first off: I am aware that the question about energy types has countless influencing factors and has been discussed a thousand times – but unfortunately I haven't yet found the right thread that addresses my question, so I am opening a new one:
Situation: We are planning to build a semi-detached house for rental with about 105-110 m². Two providers are in the final running and with them also the question of energy supply. In any case, a central ventilation system is to be installed – both house types are suitable for families, but unfortunately I don't know more about the possible heating demand.
Provider A: KFW40 house 105m², swears by exhaust air heat pump (Nibe F730) or, with BAFA subsidy, also a brine/water heat pump from NIBE 1255-6 with trench collector.
Provider B: KFW55 house 111m², offers a gas boiler plus solar system.
Costs Acquisition costs of the brine/water heat pump are "within range" thanks to subsidies – approx. 5k additional expense. The offer for the house type with gas is overall approx. 15k cheaper (otherwise roughly comparable in features).
Our questions:
- Does anyone have ALWP or brine/water heat pump in rental properties and rental and can share their experience? (Generally, tenant handling, susceptibility, electricity costs)
- Are the additional costs of the brine/water heat pump worthwhile compared to ALWP due to higher/better heating performance?
So far, we tend somewhat more towards gas and collectors, but it is more of a gut feeling, as the whole spectrum around heat pumps seems incredibly complex and somehow you can make more "mistakes" than with gas. Subsidies and grants are always bringing heat pumps closer to gas – but is it also worthwhile for rentals?
Looking forward to discussions
Best regards
first off: I am aware that the question about energy types has countless influencing factors and has been discussed a thousand times – but unfortunately I haven't yet found the right thread that addresses my question, so I am opening a new one:
Situation: We are planning to build a semi-detached house for rental with about 105-110 m². Two providers are in the final running and with them also the question of energy supply. In any case, a central ventilation system is to be installed – both house types are suitable for families, but unfortunately I don't know more about the possible heating demand.
Provider A: KFW40 house 105m², swears by exhaust air heat pump (Nibe F730) or, with BAFA subsidy, also a brine/water heat pump from NIBE 1255-6 with trench collector.
Provider B: KFW55 house 111m², offers a gas boiler plus solar system.
Costs Acquisition costs of the brine/water heat pump are "within range" thanks to subsidies – approx. 5k additional expense. The offer for the house type with gas is overall approx. 15k cheaper (otherwise roughly comparable in features).
Our questions:
- Does anyone have ALWP or brine/water heat pump in rental properties and rental and can share their experience? (Generally, tenant handling, susceptibility, electricity costs)
- Are the additional costs of the brine/water heat pump worthwhile compared to ALWP due to higher/better heating performance?
So far, we tend somewhat more towards gas and collectors, but it is more of a gut feeling, as the whole spectrum around heat pumps seems incredibly complex and somehow you can make more "mistakes" than with gas. Subsidies and grants are always bringing heat pumps closer to gas – but is it also worthwhile for rentals?
Looking forward to discussions
Best regards