Any underfloor heating experts here?

Tinders

Tinders

Tinders

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There's a voice that keeps on calling me.
Hi Guys,

I have a Victorian 4 bed semi, huge place, but also very inefficient, ive got a Worcester 28kw boiler heating the house, and tbh, its been struggling to keep the house warm, the rooms are fine, but the kitchen and downstairs bathroom struggle to get barely warm, they are part of a flat roofed extension so maybe thats why???

So im planning to go round the house and seal every damn gap up and at the same time look into putting undefloor heating into the bathroom and Kitchen, both are fairly big and are tiled, were looking to change the tiles anyhow so timing couldnt be better?

Can anyone shed any light on the matter?

Ta
 
I did a lot of research into this and fitted wet underfloor heating into a new extension on solid floor and also in the kitchen and dining room in a suspended timber floor.
From the research I've done electric is really expensive to run and you also need 100mm minimum really to install wet underfloor for the pipes and insulation.

I'm sure you'd be better spending your money on insulating and draught proofing, how about kingspan on the ceilings, even 25mm would help.

I'm sure your boiler should be up to it, are your radiators big enough / getting hot?
Is the piping adequate? I replaced all mine as it was an old designed single pipe system that just couldn't get the house up to temperature despite running constantly.
 
Its an old house, and I am planning to check if everything id sized up correctly before I start any major work.

The rooms are big, and have high ceilings, all the floor boards are creaky, I can feel draughts everywhere, so that does seem the obvious place to start, but the bathroom and kitchen rads barely get warm as the pipe runs are really long to them.

The loft has had additional insulation. Im off work today and i think i might arm myself with a silicon sealant gun lol!
 
Tinders: If your near to Swindon, you could visit 'The Buildstore' http://www.buildstore.co.uk

Intresting place if your self building, renovating, etc, underfloor heating is well represented there by firms like Genieflor,Hotfloors Underfloor Heating Limited,JG Speedfit,Nu Heat, Polypipe,Robbens Systems & Thermogroup UK.
 
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Adding wet underfloor to an existing boiler is a bit complicated, you get a low temperature return which some boilers can't handle, it then drops out of condensing mode (that's the gist of it anyway)

Consider insulating the feed/return pipes to the kitchen radiator and adding a myson kickspace heater under a unit.
Thicker Lino helps too.
 
bitslice said:
Adding wet underfloor to an existing boiler is a bit complicated, you get a low temperature return which some boilers can't handle, it then drops out of condensing mode (that's the gist of it anyway)

Consider insulating the feed/return pipes to the kitchen radiator and adding a myson kickspace heater under a unit.
Thicker Lino helps too.
Click to expand...

I thought a low return temperature was ideal for a boiler to operate in condensing mode?
 
chipperhead said:
I thought a low return temperature was ideal for a boiler to operate in condensing mode?
Click to expand...

You may be correct, this was second hand info passed on from a non technical source and I haven't really looked into this to understand what was going on, it may even have been a high return temp.

All I know is there may be issues with that sort of dual system and the boiler manufacturer was a bit vague about the problem themselves. Afaik it still hasn't been fixed for that client. I just wanted to make the point that this may not be a straightforward addition to an existing system.
 
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