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when you say bypass do you mean a differential bypass valve? i've got one fitted in on a branch that tee's off between the pump and the 3 port and feeds just a towel rail in the bathroom, that way the towels are dried when ever the boiler comes on so a lot in the winter and just for 20 mins in...

The radiator furthest from the boiler, also the largest, has the lockshield fully open. This is one of the 3 which is in a room we only use occasionally. The other's are about 1/3 to 1/4 open. And the one in the main bedroom which is quite close to the boiler main feed and return, in fact i...

Sorry brain freeze moment, the tops do come off i've checked and the pins move up and down freely and the actuator heads move down inside when you wind it down. I spoke to the manufacture and they told me they no longer do the decorators cap for those valves the new style has a different thread...

unfortunately they don't come with decorators cap's. I'm not sure if i can get the the head off it looks to be a single piece

Hi all, i've just finished fitting a couple of new column rads and decided to fit all new Bently traditional TRV's downstairs to complement them...

I've originally suggested some kind of lighting control system like DALI to the customer but they quickly highlighted they have very poor WiFi and mobile data at the premises possibly due to thick stone/masonry walls blocking signals, and they had had given up on mobiles and WiFi long ago and...

Thanks for the reply's, i think the light that is 400m away will be dropped as the cable costs are far too high. The 6 pole switch from RS is perfect and i might even go for more poles if they do it so there is spare capacity for the future. I was going to mount everything into an enclosure and...

i forgot to say the flood lights are going to be 50/100/150W LED's https://www.wholesaleledlights.co.uk/150w-led-floodlight-15000-lumens.html or something similar

Good evening all I've got an interesting problem. I've been asked by a customer to wire up a series of outdoor flood lights and PIRs around a large property (over an acre in all). There are currently 4 large floodlights 2 with PIR's. They have asked for 3 additional ones and they have asked for...

I was just looking for a sense check on here really. I didn't want to pay a structural engineer to work it all out and he sizes a massive beam that is impractical, or impossible to install in my situation. I hopped someone might have some rules of thumb or sums to be able to work it out but it...

I assume heavy means a heavy tiled roof but "assumptions are the mother of all muck ups" I'm going to try and work it out using my uni notes but I will get is checked by a structural engineer before I go ahead with the works.

I hadn't thought of a composite beam "Flitch Beam" I've found this from a Newzeland website https://www.mii.com/artefact/download.asp?aid=61449 It recons a lintel comprising of two 2" x 12" timbers with an 8mm steel plate in the middle would support a heavy roof 5.5m wide with a clear span of...

Good evening all, I've been trawling the internet for ages trying to solve this problem so i thought i'd try on here for some advise. I need to size a beam for a garage/ barn roof. I'm just trying to work out if what i'm proposing is possible before going down the line of expensive planning...