ᐅ Underfloor Heating in Older Buildings: Retrofitting Options
Created on: 2 Jan 2022 16:49
L
littlebird
Hello,
since we are still looking for an apartment or a house, I would like to gather general information about retrofitting underfloor heating.
1. Is it even practical to install underfloor heating afterwards if there is an existing gas heating system with radiators? If there is a garden, does it make sense to install an air source heat pump, especially in older buildings that are generally not very well insulated? Is a gas heating system suitable for use with an air source heat pump?
2. Since older buildings usually have low ceiling heights, I am concerned whether insulation on the floor plus underfloor heating will take up too much space and cause issues with door height. What options are there for the doors? Do they simply need to be smaller?
3. Can the manifold for the underfloor heating be installed in the basement, or would that cause the pipe runs inside the house to be too long?
4. Since this is a retrofit, how complicated is it to build a vertical shaft for the underfloor heating, for example spanning three floors (ground floor, first floor, and second floor)? Is it allowed to use the chimney for this purpose?
Thank you!
since we are still looking for an apartment or a house, I would like to gather general information about retrofitting underfloor heating.
1. Is it even practical to install underfloor heating afterwards if there is an existing gas heating system with radiators? If there is a garden, does it make sense to install an air source heat pump, especially in older buildings that are generally not very well insulated? Is a gas heating system suitable for use with an air source heat pump?
2. Since older buildings usually have low ceiling heights, I am concerned whether insulation on the floor plus underfloor heating will take up too much space and cause issues with door height. What options are there for the doors? Do they simply need to be smaller?
3. Can the manifold for the underfloor heating be installed in the basement, or would that cause the pipe runs inside the house to be too long?
4. Since this is a retrofit, how complicated is it to build a vertical shaft for the underfloor heating, for example spanning three floors (ground floor, first floor, and second floor)? Is it allowed to use the chimney for this purpose?
Thank you!
L
littlebird6 Jan 2022 19:05We already know that the house we want to visit has a gas heating system with radiators. The age of the building is not the only thing that matters to us; rather, it is the overall condition of the house. This means how difficult (and costly) it would be to bring the house up to a standard that we would be satisfied with.
That is why I find it a little surprising that it seems unusual to ask such questions. Of course, it is necessary to know in advance how practical or even possible it is to retrofit a building with, for example, underfloor heating, and what the associated costs would be.
That is why I find it a little surprising that it seems unusual to ask such questions. Of course, it is necessary to know in advance how practical or even possible it is to retrofit a building with, for example, underfloor heating, and what the associated costs would be.
L
littlebird6 Jan 2022 19:16Deliverer schrieb:
There are systems with lower build-up heights, but they do cost a bit more. I installed one just last year for that exact reason (happy to provide more details via PM). Hello Deliverer, I would like to contact you, but unfortunately I do not have enough posts to start a conversation with you. Could you please send me your email address (firesim1990@gmail.com)? Thank you.
B
Benutzer2006 Jan 2022 19:41littlebird schrieb:
The topic of underfloor heating is important to us, and when it comes to renewing the heating system, I think a heat pump combined with underfloor heating is very good. I didn’t realize it was much easier than I thought.Easy is relative. Off the top of my head:- have an energy calculation done including a layout plan for the underfloor heating
- remove old floor covering
- remove old screed
- insulate underneath or insulate the basement ceiling
- install underfloor heating (stapling, clipping, or however it’s done)
- apply new screed
- adjust some of the electrical work
- create openings up/down or through the wall for the heat pump supply lines
- connect the hot water storage tank and tie it into the existing plumbing
- install new floor coverings
- skim coat walls, since electrical resistance heating cables may also need to be installed (or use wireless ones temporarily, returning them afterwards)
When the old floor is removed, it’s also a good opportunity to lay electrical wiring if you are renewing that as well.
I did the whole thing myself last year in a house built in the 1960s.
D
Deliverer6 Jan 2022 21:36Benutzer200 schrieb:
- Plaster walls because ERR also need to be installed (or you work with radio connection pro forma, only to hand it back later).In 2020, I renovated my older building with subsidies, and ERR (unlike in new construction) were not mandatory. Has this changed?Similar topics