Radiators Plumbed in to Hotwater

[raymondo68]

Part L is a building regulation (Conservation of Heat and Power). All heating circuits must be controlled by a timer and a thermostat. The bathroom radiator is heating a space that is not controlled by a thermostat.

Depends what the original plumber is like....... a bit of good old fashioned negotiation me thinks!

 

[Gray0689]

If your radiators in the bathroom are on the hot water circuit to/from the cylinder that is correct and is still current practice (this means you canh dry towels on them in the summer when the heating is switched off). For a ch/hw system I usually do plumb the towel rail into the hot water not the central heating.

The way to solve your problem is to restrict the flow to the radiators in question by cranking down the lockshields.

The other poster is getting mixed up with a DIRECT cylinder, a very old fashioned idea in which the towel rails should be made from brass.

This is not current this is old fashioned towel rails can and should be put on there own circuit

 

[Deleted member 2053]

Bearing in mind that heat rises and the coil for heating the hot water is well down the cylinder, then the only way that the radiators are going to make the cylinder water go cold is for them to be fed with tap water in which case, as already stated above, you either have copper/brass rads or you would be replacing them (and your ceilings) on an annual basis, so you may be mis-diagnosing the problem here. Most of my customers regard having a bathroom rad that keeps towels warm all year round as a feature rather than a burden, though I would normally bring the fact to their attention in case they wanted it changed. A rad can always be made to turn off in summer through the use of a thermstatic rad valve. Get the guy back and talk nicely to him, though from what you say I would expect the work to be chargeable.

 

[WHPES]

Radiators on the DHW circuit are fine regarding Prt L as long as you have a TRV fitted. I asked my old tutor about this and that is what he said, and he is an expert in the industry. I have fitted several up this way and the building inspector has never once commented.

You can't get copper radiators but you can get all brass or stainless ones for use with direct cylinder systems. (and yes.. they are quite pricey)

 

[Gray0689]

Radiators on the DHW circuit are fine regarding Prt L as long as you have a TRV fitted. I asked my old tutor about this and that is what he said, and he is an expert in the industry. I have fitted several up this way and the building inspector has never once commented.

You can't get copper radiators but you can get all brass or stainless ones for use with direct cylinder systems. (and yes.. they are quite pricey)

Old fashioned

 

[mboshier]

I fit all my towel rails on the primaries then they heat up when you call for hot water so when you get out the shower in the summer the towel rail can be warm!

 

[ecowarm]

it was not uncommon to have towel rails off the secondary circulation (pumped hot water circuits) on larger properties