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Just got an email from the company I approached and they are interested in the idea. I have been passed on to a senior engineer to get the ideas tested :D Can't fault the manufacturer for communications now we've got the ball rolling so I'll leave this post as it is for now. Thanks for...

:lol: I plan my own world domination but not in the heating industry :p

Just a quick update - come off the phone to one of the above boiler manufacturers and have emailled them my idea. Turns out I used to go to school with the chappie I spoke to - small world eh !!!! Fingers crossed now that its an original idea for them and they take it on.

Broag?

Basically its a combined safety and energy savings device. Using something similar in my last property I more than halved my fuel bill. I appreciate JohnDs comment about why the manufacturers don't appreciate ideas like this but if I can find a company I can trust with the idea and they...

That has been suggested before but the patent process is an expensive one and a pain in the rear. Its only worth patenting something if you have the funds to challenge anyone who breaches the patent and that could cost hundreds of thousands through the courts. I'd rather sell the idea to...

I'm looking to get in touch with a decent manufacturer of combi boilers in the UK with regards to an idea I've got for a boiler enhancement. Obviously I can't say too much about the idea in public but having run it past a few close relatives the general feeling is that it is a good idea and...

P.s. get an inline 6 mm shutoff tap - its a godsend when you want to change the filters or move the fridge and they are only a couple of quid. Here is who I used - they may do mail order but are very friendly and I would highly recommend them. http://www.coolercompany.co.uk/

Do a search on yell.com for water dispenser and drink machine suppliers in your area. I got a load of connectors, a tap, pipework etc to plumb mine in for around £15

Bit beyond the scope of my boiler knowledge now I'm afraid. I suspect that if there is a seperate thermostat or sensor for the preheat side of the boiler it could have gone faulty but thats just a guess.

Cool :) I got that one wrong then :lol: Alls well that ends well

If you turn the boiler on with the CH off and it seems ok and doesnt over heat then ..... Turn on water (with CH off) Turn off water (with CH off) This should test to see if DHW is working correctly. If the boiler turns back off and behaves then the chances are its your diverter valve in...

What happens when CH is turned off and DHW is used ?

Which diaphragm ?

If that was the case I wouldn't expect the boiler to boil over unless it was on the CH setting as well. i.e. if the CH is off and the boiler keeps running after the hot water tap is turned off I would suspect a dodgy flow switch. If the CH is off and the boiler turns off when the hot water...

On mine when the DHW switch got stuck on it signalled the boiler to keep the diverter valve in the hot water position. As there was no flow through the hot water pipes (DHW) the boiler kept heating the water that was in the heat exchanger. Freeing the switch made the boiler switch the...

I had this on a Gloworm combi boiler. The DHW demand switch was sticking. I unstuck it and it worked fine for a few more months then the problem came back. Turned out to be a weak diphragm on the DHW demand switch. It would let the switch turn on when water was called for but did not turn...

Worth checking the switch/diaphram before going out and buying a replacement - mine cost a couple of quid from a local plumb center. If you get someone to turn the tap on and off and listen carefully inside the boiler you can usually hear it turning on and off. If you hear nothing when the...

I had this problem on a Glowworm combi boiler - when the tap was opened the small diaphram on the DHW sense switch wasnt operating properly so the boiler wasn't told it needed to turn on the burners. It then progressed to sticking on so while it would heat the water, when the water was turned...

To simplify it - its basically a small computer. They have the same processing power as an old ZX Spectrum or Commodore 64. You buy them as a blank chip then write code to go into them. There are a variety ranging from one with a couple of inputs and outputs to ones that incorporate...