In article , John Stumbles
writes
On Mon, 04 Aug 2008 03:23:08 -0700, tvmo wrote:

I'm looking to replace the radiator in my upstairs bathroom and I'm
considering under floor heating.

Is it possible to remove the radiator and attach a long length of
plastic piping in its place and coil this under the floor? Would this
give the same affect as under floor heating?

Yes, providing it's not too closely coupled to the floor surface otherwise
it would overheat it since the temperature of water through rads is higher
than that used un UFH systems. However bathrooms often need a greater heat
input than UFH can provide since they tend to have relatively large
amount of outside wall area for their floor area, some of which isn't
usable being covered by the bath etc, and bathrooms also want higher
temperatures than other rooms to be comfortable in.

You'd need to do the heatloss calcs on it - see the DIY wiki for links.
See the UFH article there as well. http://wiki.diyfaq.org.uk IIRC

I'd be inclined to bung some 15mm pipe under the floors to warm them for
comfort and have a proper radiator and/or towel warmer for space heating.

Surely a pipe in the ceiling void below the floor boards will heat that
space and since wood is quite a good insulator, very little will get
through the floorboards.
I thought UFH worked best when cast into a solid floor?

--
John Alexander,

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