gravity

Hello. I'm a novice diy'er and need some help....I need to drain down my gravity fed system but not too sure how to do it. I know how to connect to the drain off valve on the lowest rad but not too sure of isolation or shutting off the water? Do I need to isolate both boiler and the...

Converting old oil boiler with gravity HW to pumped system with condensing boiler. at present there are the usual feed and return gravity pipes from the boiler. The central heating feed with a pump on the boiler splits for 2 radiators on the ground floor and the rest feeding the first floor and...

Hello - I have a quick question. We have a Ideal Mexico gravity boiler. It's very old (not our choice - landlord's choice). We currently have the central heating completely turned off. However, whenever the hot water heating comes on, certain of the radiators are also heated to a very high...

Hi, we have a gravity drainage system. The pipes goes from treatment tanks to the water treatment plant where the water will be treated to achieved regulation. The system doesnt use any pump, just gravity, but for landscape reasons we have to make an arragenment to the pipe, so at the end is...

Guys, need advice, got a gravity hot water system, head is 12 m but had to install a pump because there is 4/5 Victoria style old baths which can be run at the same time this at moment makes the water die when 2 or more are run. the pump installed blows over the expansion back into the tank...

heating working fine on pump but cant get cylinder to heat up for hot water which is gravity

Can anyone recommend a good mechanical timer for a pumped heating gravity hot water system. Thank you for your help.

Apart from siphonage and air what are the other reasons for installing this so called London loop?

hi there. Have an old corroding towel rail in our main bathroom which I would like to remove and simply cap off. I was going to simply lift the floor boards and connect the two pipes under the floor after removing the spurs to the towel rail as didnt what to cap each one off individually as...

Got asked to look at boiler today as they had no hot water. It was an old Worcester Heatslave oil fired boiler with pumped heating and gravity hot water. The flow was only getting hot about 6-7 inches above the boiler. The whole install is a mess, feed and vent are BOTH 15mm. The feed used to...

Hi all, just viewed a proposed boiler install heat only direct swap. The system is gravity fed but has no open vent? So I presume the water expands back into the cistern. Is this common?

I'm trying to figure out a problem for a guy with solar heating that connects through a cylinder and then to the DHW inlet at his combi. The warm water from the solar panel is a closed circuit which warms the water in the cylinder through a heat exchanger, the water in the cylinder is static, it...

Been working on my folks heating system (sludged up radiator) but can't understand what's going on. 1990's professionally installed oil Worcester Boiler system with gravity header tank. Hostmann Tiara Controller. One single two way Honeywell diverter valve. No roomstat but stats TRV's on...

Dear (ladies?) and gents, I'm due to help a friend install a new bathroom suite, and he has chosen a bath with tap holes on the long side of the bath, the side which sits against the far wall...My original thought for plumbing this ridiculous thing in was to buy some of those extra long...

Hi HiGoing to a job where they have an indirect system connected to an direct cylinder, tappings for a indirect cylinder but says direct on the side and there is no F&E tank in loft only CWSC. The heating system has a lot of air/gas in it and just does not work properly. So I have proposed to...

Hello All This might be a bone question but can I fit a new boiler & keep the gravity hot water system ? I'm sure I can't due to the regs & condensing oil boilers mostly have two outlets ( apart from the very high quality WB range, NOT! )but other plumbers have told my customer that it's ok. Am...

i am on a job where the radiators down stairs are heating good but the 3 upstairs rads have no heat whatsoever, the boiler is outside at back door of house and is working perfectly,pump sounds great and set at 3, radiators are full of water upstairs yet no heat apart from at one which has tiny...