Non-motoring > The Christmas Eve C/H failure. Miscellaneous
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New Thu 24 Dec 20 22:51 
 The Christmas Eve C/H failure. - sherlock47
3 way valves - i just refuse to use one.

I run a a system with 2 pumps and a non return valve on the heating circuit to prevent gravity circulation. Ok it also requires a third relay to ensure that boiler overrun works correctly. But this modification was added when the original boiler was replaced with a condensing boiler about 10 years ago.

It has been working with the 1 pump failure and one noisy relay replacement in over 25 years.

That is probably the kiss of death :)

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 The Christmas Eve C/H failure. new Zero 23 Dec 20 22:39
 The Christmas Eve C/H failure. new smokie 23 Dec 20 22:53
 The Christmas Eve C/H failure. new VxFan 24 Dec 20 10:35
 The Christmas Eve C/H failure. new smokie 24 Dec 20 10:54
 The Christmas Eve C/H failure. new VxFan 24 Dec 20 11:03
 The Christmas Eve C/H failure. new smokie 24 Dec 20 11:33
 The Christmas Eve C/H failure. new tyrednemotional 23 Dec 20 22:56
 The Christmas Eve C/H failure. new Zero 23 Dec 20 23:00
 The Christmas Eve C/H failure. new Fullchat 23 Dec 20 23:18
 The Christmas Eve C/H failure. new Zero 23 Dec 20 23:32
 The Christmas Eve C/H failure. new Kevin 24 Dec 20 12:25
 The Christmas Eve C/H failure. new tyrednemotional 24 Dec 20 12:40
 The Christmas Eve C/H failure. new sherlock47 24 Dec 20 22:51
 The Christmas Eve C/H failure. new Zero 24 Dec 20 16:05
 The Christmas Eve C/H failure. new tyrednemotional 24 Dec 20 16:14
 The Christmas Eve C/H failure. new Zero 24 Dec 20 16:41
 The Christmas Eve C/H failure. new tyrednemotional 24 Dec 20 16:47
 The Christmas Eve C/H failure. new legacylad 23 Dec 20 23:23
 The Christmas Eve C/H failure. new Runfer D'Hills 23 Dec 20 23:28
 The Christmas Eve C/H failure. new legacylad 23 Dec 20 23:41
 The Christmas Eve C/H failure. new Zero 23 Dec 20 23:35
 The Christmas Eve C/H failure. new legacylad 23 Dec 20 23:43
 The Christmas Eve C/H failure. new Fullchat 24 Dec 20 01:08
 The Christmas Eve C/H failure. new Runfer D'Hills 24 Dec 20 07:32
 The Christmas Eve C/H failure. new legacylad 24 Dec 20 07:41
 The Christmas Eve C/H failure. new Runfer D'Hills 24 Dec 20 11:23
 The Christmas Eve C/H failure. new tyrednemotional 24 Dec 20 07:34
 The Christmas Eve C/H failure. new Kevin 24 Dec 20 10:48
 The Christmas Eve C/H failure. new Zero 24 Dec 20 11:23
 The Christmas Eve C/H failure. new helicopter 24 Dec 20 15:36
 The Christmas Eve C/H failure. new James Loveless 24 Dec 20 15:43
 The Christmas Eve C/H failure. new percy 30 Dec 20 19:20
 The Christmas Eve C/H failure. new Duncan 30 Dec 20 22:30
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