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General => General discussion => Topic started by: Wazzzer on 25 October 2011, 16:07

Title: Any central heating technicians on here?
Post by: Wazzzer on 25 October 2011, 16:07
Just a question really, I've just replaced my wireless box to my boiler and while looking into the instructions for the thermostat it mentions in there that you shouldn't have a TRV fitted on the rad in the same room as the thermostat otherwise it would mess the temperature control up?
Title: Re: Any central heating technicians on here?
Post by: justalex81 on 25 October 2011, 17:11
that is correct. As trv's are a thermostatic control they sense the temperature around them and close when they get hot. If you have one near your thermostat then the trv could close before the temperature on the thermostat is satisfied and your stat will keep the heating on. just remove the head. they are sprung loaded and will stay open if the head is removed.
Title: Re: Any central heating technicians on here?
Post by: Wazzzer on 25 October 2011, 17:34
sweet thanks mate, I'll pull it off in a mo. I did always wonder why this room would never get up to temperature, I always put it down to being the last rad on the system but it would seem the TRV is the problem  :smiley:
Title: Re: Any central heating technicians on here?
Post by: emery1990 on 25 October 2011, 18:28
If it has max written on it, or generally if turned right up then it would always stay open anyway.  If you had a trv ion in the same room as the stat if the trv was set lower than the stat then the rad would turn itself off letting the other rads heat up that room, so will save you money to get rid, leave open the trv lol

Also set all your trv's to medium (3), no need for them all to be fully open otherwise pointless having a trv anyway!
Title: Re: Any central heating technicians on here?
Post by: Wazzzer on 25 October 2011, 18:33
thinking about it this will be the first year we will have had the whole house double glazed too so I'll see how it goes. The TRV is set to 5 too
Title: Re: Any central heating technicians on here?
Post by: emery1990 on 25 October 2011, 18:38
Yer that'll make a big difference! Make sure your roofs insulated too.. Goes out soo quick otherwise. :sick:
Title: Re: Any central heating technicians on here?
Post by: Wazzzer on 25 October 2011, 21:41
Yeah roof is sorted, we've binned all the loft floor insulation and added it into the roof joists behind plasterboard as we're having a play room for my girls which will also double up as an escape room for me lol
Title: Re: Any central heating technicians on here?
Post by: Len on 26 October 2011, 13:07
I would have kept the loft floor insulation where it was and put new stuff in the rafters.
Title: Re: Any central heating technicians on here?
Post by: emery1990 on 26 October 2011, 17:24
Ahh right lol, yer I would of kept, if your saying having then is it still open flooring, if so put it back is as the play room area will boil when the heating is on. heat can't escape but coming up from the below floors! Ours gets crazy hot but thats as it has hole in the floor!
Title: Re: Any central heating technicians on here?
Post by: Wazzzer on 26 October 2011, 23:08
There isn't any heating up there but there is a roof light. The cupboards down the sides aren't insulated in the joists so heat can still escape through there. My bedroom at my parents had the floor and the joists insulated and that was ice cold in the winter and boiling in the summer
Title: Re: Any central heating technicians on here?
Post by: justalex81 on 27 October 2011, 00:08
what you're describing is probably a good 10-20% extra on your heating bills. fine if you're not planning on living there long but worth insulating properly if you are.
Title: Re: Any central heating technicians on here?
Post by: Len on 27 October 2011, 13:11
Wazzer - are you putting full sized floor joists in that loft?
If not you cant put much weight up there!
Title: Re: Any central heating technicians on here?
Post by: Wazzzer on 27 October 2011, 17:59
yep all been strengthened already

So how is the loft going to get any heat if the floor is insulated? It put me off insulating the floors as well as my old bedroom was unbearable in the summer during the day
Title: Re: Any central heating technicians on here?
Post by: Wazzzer on 27 October 2011, 18:05
I'll add it to the floors if that's how it should be done though, I've got plenty of insulation kicking about
Title: Re: Any central heating technicians on here?
Post by: justalex81 on 27 October 2011, 18:30
either add an extra radiator or stick some air conditioning up there that does heating and cooling.