ᐅ Single-Family Home Built in 2004 – Renovation Plan / Solar Power and More

Hello friends,

I own a single-family house that was built/occupied in 2004 (I was not involved in the construction back then). Now we want to make some changes/improvements regarding the energy performance of the house. So far, we have a Viessmann gas heating system from 2004.

I was thinking about replacing the gas heating with an air-to-water heat pump and powering it with a photovoltaic system (at least in theory—I have no real idea how this would work in practice for us). So I asked an energy consultant to come by and make some recommendations. Most of the suggestions make sense to me (though I’m a layperson and can only follow them superficially). I would appreciate it if you could take a look at the plan here and leave any comments you might have.

If you have any ideas on how I could share the PDF files here better than converting them into a million JPGs, I would be thankful (from what I understand, this forum discourages linking to external sites), especially since I can only attach 10 files?

My thoughts on the plan are as follows:
Package 1 is very expensive (maybe no insulated glazing? Are the current windows okay?) especially compared to the savings (I’m aware this might be a wrong assumption on my part). Otherwise, I would have agreed to everything.

If you don’t know what to do with the money, you can certainly do something. Otherwise, it’s the classic case of water being carried to the brook…

A house built in 2004 is modern.
First, move in and pay the heating costs.
If the heating becomes a money pit, reconsider your options.
Houses from 2004 aren’t being demolished by the dozens because of energy efficiency; they are still lived in.

@Acetone1424 ... who do you think would read it like this?
If there are several versions, it would have been more practical to create one post per version with a summary and, if needed, the detailed documents ... but this is quite demanding. 😕

Hello 🙂

May I ask what the reason is for upgrading the energy efficiency of a relatively new building? On what basis were the investment costs calculated? Prices are quite high at the moment.

Best regards

Sorry, but no one reads that.

Basic approach:
1: Cover all roofs completely with photovoltaic panels.
2: Renovate whenever there is something to renovate.
3: BEFORE the heating system breaks down, prepare a solid plan for how to quickly switch to a heat pump in case of emergency. Once the plan is ready, you can also switch earlier at any time. The children will thank you.