Garage radiator install help

[Stugarlinge1970]

Hi all, just finishing up self building our garage and bedroom extension, well shall I say man cave /gym not a garage, our boiler is on what was the exterior wall before garage went up, my question is, putting the radiator on the opposite side of the wall to the boiler, can I just thought off from the 22mm away & return pipes at the boiler with 15mm from each end of the new rad, or have I got to the off further into the system then back track my pipework, cheers

 

[Whitespirit66]

Presuming it's a combi? From the 22mm pipes near boiler will be fine. Being that close, the lockshield valve on new rad will have to be barely open (enough to make the rad work properly) or it may make a nice short-circuit and cause other further rads to run cooler.

 

[Stugarlinge1970]

Yeah it's a combi, shall I keep the lockshield on the entry or exit end of the rad, or both, would it still be OK to use a trv on such a short circuit

 

[Whitespirit66]

Yeah it's a combi, shall I keep the lockshield on the entry or exit end of the rad, or both, would it still be OK to use a trv on such a short circuit

General rule is TRV on flow/entry side, l/shield on return. However, most TRVs are bi-directional these days, so not essential to have valves this way around. TRV will be fine on this rad.

 

[sammy1990]

Yeah it's a combi, shall I keep the lockshield on the entry or exit end of the rad, or both, would it still be OK to use a trv on such a short circuit

General rule is TRV on flow/entry side, l/shield on return. However, most TRVs are bi-directional these days, so not essential to have valves this way around. TRV will be fine on this rad.

Good point. My TRVs must have been incorrectly fitted because they make a clicking noise as the radiator heats up.

 

[Whitespirit66]

Yeah it's a combi, shall I keep the lockshield on the entry or exit end of the rad, or both, would it still be OK to use a trv on such a short circuit

General rule is TRV on flow/entry side, l/shield on return. However, most TRVs are bi-directional these days, so not essential to have valves this way around. TRV will be fine on this rad.

Good point. My TRVs must have been incorrectly fitted because they make a clicking noise as the radiator heats up.

If your rads make a clicking/ticking noise when heating up, it more likely to be the plastic packing spacers missing from their brackets where the rads hang on them. Without the spacers, the metal rad digs into the brackets as the rad expands.

http://www.ebay.co.uk/itm/PACK-OF-4...DIY_Materials_Plumbing_MJ&hash=item2a33a503cc