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I have a Santon 210 litre unvented cylinder. I've had water running through the tundish for a while. Initially, I had a very weak hot water flow to taps and showers. The gauge at the combination valve showed only about 1.2bar pressure. The santon system should be set at 3.5 bar according to...

thanks. I have most of them now at around 1/4 turn or slightly above

Yes, the rads are hot at about 3.7 setting, but the stat trips at any setting over 4 (which obviously I never set it at) Over the last few years Ive replaced the 2 way valves, pump, expansion tank and had the system flushed and new inhibitor added. The burner was serviced too. The only...

I appreciate where you are coming from, but I do really get exasperated at the number of posts asking for advice on a DIY forum which get the immediate answer, "call an engineer". I have fitted a new central heating water pump, replaced burner jets, and added a magnetic filter to my heating...

Yes I am aware of all that. I am also aware that many people do fit their own expansion tanks without issue. I posted elsewhere of the issues a previous engineer caused with my hot water system, charging me a fortune and leaving the system in a worse state than it was when he first came in. I...

Its buried behind racks of clothes in the airing cupboard so difficult to photo. It was an exact replacement for what was there. A Grey coloured potable tank, I think it was 12 or 18 litres, but in any event, it was the same size and type as the original. I checked the pressure on the top...

My old hot water expansion tank was knackered (water coming out from valve on top) I got a similar new tank fitted. (also checked the pressure pre fitting) Ever since, on turning on any hot tap, there is a loud whining droning noise for about 5 seconds, then all is ok again. How can I fix...

Got to the bottom of this myself, and maybe a note of icaution for others buying these for the first time. They will not work on a typical 35mbar propane regulator, the type you would use with say a bbq or patio heater. They need a high pressure regulator of the type used by roofers. What threw...

There is a thumbwheel and trigger. Tbh, it should be totally straightforward to use. Connect regulator to cylinder, connect hose and torch to regulator, tun cylinder on slowly, turn torch thumbwheel on slowly and ignite at the tip, tup the thumbwheel up to increase flow and press trigger for...

Yes, I know about the thumbwheel. However, when I turn mine up or down, its goes from a small weak flame to a larger weak flame. Im missing the jet thrust and blue flame I should be getting. Starting to think it might be the regulator, although I can't for the life of me see how changing the...

What do you mean by screw the regulator down? Whilst on the regulator subject, Im a bit confused. I have mine connected with a standard 35mbar regulator for propane. If I look up regulators for roofer torches (which these weed burners essentially are), I see reference to regulators like...

Thanks MM. The TF1 can only be fitted shortly after the hot water feed out of the boiler and before the pump, due to space restriction. I know recommendation is for the TF1 to be fitted in the return leg for best performance, but that's not an option here. All my pipework except for a minimum...

I had a canister operated gas weed burner for years which worked well, but was costly to run as the canisters did not last long. I decided to buy a more heavy duty propane gas wand which connects to a large propane tank on a trolley. This is the sort of set up roofers would use whilst working...

interesting, thank you Jim. I take it the benefit being, even though the air vent is on the 'pulling' side of the pump, air won't get in due to the airtight seal. Then just release when wanting to bleed air after a service or flush?

Thinking about the relocation of the AAV. There is not a lot of surplus piping around my boiler, particularly after the pump. Only about a foot or so before the pipe disappears underground and back to the house. There is more vertical piping than horizontal. Looking at the existing and...

I see. So best left closed then. Wish I had have bought one with a brass cap then.

Its a plastic cap, and I have it closed but I also ripped the plastic threads in the process hence the leak. Just on that point, because I noticed my new AAV has a plastic cap also, if this is closed shut, how does the air escape?

Thanks Oilhead. My intention is to strip off all the old insulation and give all the pipework a good clean down anyway as part of the flushing of the system I am going to do. The pipework itself is sound. I am going to fit a TF1 Omega filter also and a new 18 litre expansion vessel and...

Thanks for that, but why? Other than being dirty, its been there 16 years without any issue other than what I am querying above. The rusting and dirt are from the constant dripping of the Automatic air valve above the pump, dripping down the piping but there are no leaks from the system piping...

Hi. I am just about to drain down and flush my pressurised oil fired home heating system which is situated in my garage (adding a TF1 filter and fresh inhibitor as well.). After looking at the whole system and trying to plan the job out, I am suspicious of a few things that I have seen, and just...