ᐅ Renovation of a Semi-Detached House with a Gas Condensing Boiler – Underfloor Heating? How to Heat?
Created on: 19 Feb 2016 10:23
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roadrun87R
roadrun8719 Feb 2016 10:23Hello everyone,
We are renovating a semi-detached house with a gas condensing boiler heating system.
There is already underfloor heating installed on the ground floor. We want to extend the underfloor heating to the upper floor as well.
The basement has 4 rooms plus a hallway.
Hallway: 3.7 m² (40 sq ft)
Room 1: Utility room (distribution unit, server rack, etc.) 6.4 m² (69 sq ft) (currently not heated at all)
Room 2: Laundry room 14.9 m² (160 sq ft) (currently not heated at all)
Room 3: 12.8 m² (138 sq ft) (This room is planned to eventually house a sauna)
Room 4: 22.9 m² (247 sq ft) (This will be an office and possibly later converted into living space, e.g. a teenager’s room)
Somehow, I feel that retrofitting underfloor heating in the basement is quite an effort.
On the other hand, I’m told that using radiators in the basement forces the whole heating system to operate at an unnecessarily high supply temperature.
Is there an alternative? Or should I at least install underfloor heating in the larger room?
In my opinion, rooms 1 and 2 can remain unheated, or am I mistaken?
We are renovating a semi-detached house with a gas condensing boiler heating system.
There is already underfloor heating installed on the ground floor. We want to extend the underfloor heating to the upper floor as well.
The basement has 4 rooms plus a hallway.
Hallway: 3.7 m² (40 sq ft)
Room 1: Utility room (distribution unit, server rack, etc.) 6.4 m² (69 sq ft) (currently not heated at all)
Room 2: Laundry room 14.9 m² (160 sq ft) (currently not heated at all)
Room 3: 12.8 m² (138 sq ft) (This room is planned to eventually house a sauna)
Room 4: 22.9 m² (247 sq ft) (This will be an office and possibly later converted into living space, e.g. a teenager’s room)
Somehow, I feel that retrofitting underfloor heating in the basement is quite an effort.
On the other hand, I’m told that using radiators in the basement forces the whole heating system to operate at an unnecessarily high supply temperature.
Is there an alternative? Or should I at least install underfloor heating in the larger room?
In my opinion, rooms 1 and 2 can remain unheated, or am I mistaken?
With radiators, you really need to run a higher flow temperature. There are special low-temperature radiators available, but they are very expensive.
In our basement, we installed underfloor heating throughout. When building a new house with a basement, this question usually doesn’t come up. The problem with retrofitting an existing building is that the ceiling height is significantly reduced by the floor construction. First insulation at the bottom, then the underfloor heating, followed by the screed with sufficient thickness. Maybe there is a lower construction method using a dry screed – but I cannot say anything about that.
However, for your situation, standard radiators in the basement might be the best solution. You can quickly raise the room temperature during sauna use or in the study – with underfloor heating, it takes a long time.
In our basement, we installed underfloor heating throughout. When building a new house with a basement, this question usually doesn’t come up. The problem with retrofitting an existing building is that the ceiling height is significantly reduced by the floor construction. First insulation at the bottom, then the underfloor heating, followed by the screed with sufficient thickness. Maybe there is a lower construction method using a dry screed – but I cannot say anything about that.
However, for your situation, standard radiators in the basement might be the best solution. You can quickly raise the room temperature during sauna use or in the study – with underfloor heating, it takes a long time.
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roadrun8721 Feb 2016 09:26Yes, that’s right, the ceiling height could become an issue.
Currently, there are tiles installed with a suspended ceiling.
I don’t want to lose too much more height there. However, I don’t know how far the ceiling has been lowered.
Is there a very low-profile option for underfloor heating?
How do the costs of retrofitting underfloor heating compare to standard radiators and the high flow temperatures (FT) in the long term?
Oh, and the current heating system will remain and is currently designed for underfloor heating plus radiators. Is it even possible to adjust it for lower flow temperatures?
Currently, there are tiles installed with a suspended ceiling.
I don’t want to lose too much more height there. However, I don’t know how far the ceiling has been lowered.
Is there a very low-profile option for underfloor heating?
How do the costs of retrofitting underfloor heating compare to standard radiators and the high flow temperatures (FT) in the long term?
Oh, and the current heating system will remain and is currently designed for underfloor heating plus radiators. Is it even possible to adjust it for lower flow temperatures?
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