log burner question

[ufkir]

why is the pump there, is it gravity hot water

 

[PEG]

why is the pump there, is it gravity hot water

...Let us hope it is an "assistance" and not a necessity ...seen many,where that cable/pump/power station,were absolutely VITAL :yes:

 

[Geordie Spark]

Yes am leaning towards that route.

will pop round when hes and get him to fire it up and measure the temp. will be less painful than phoning the manufacturer i think.

Good lad! Now you're getting the hang of it! :hurray:

By the time you'v waited for your call to be answered then you're passed around like a parcel at a kids party until you finally get to speak to somebody and then find you get the wrong answer anyway you may as well have measured it yourself in the first place!!

 

[Knobhead]

Personally I’d move the pump away from the boiler. The pump and cabling won’t be excessively over heated and would be hidden from view.

I’m surprised our resident geordie wet head didn’t suggest that.

 

[Geordie Spark]

Personally I’d move the pump away from the boiler. The pump and cabling won’t be excessively over heated and would be hidden from view.

I’m surprised our resident geordie wet head didn’t suggest that.

Geordie didn't mention it because Geordie thought it was such an obvious thing to do that it must have been already considered and dismissed for some reason.

But Geordie forgot he was trying to educate a shower of sparks who seem to have an obsession with overcomplicating the simplest of things - including their own Internet Forum........:wink_smile:

 

[Knobhead]

Very true Geordie, far to complicated for a DI to comprehend.

What always gets me with these threads that start “my friend has just”. Why don’t the OP’s admit they’ve taken on a job and haven’t a clue what they’re doing?

 

[Geordie Spark]

Very true Geordie, far to complicated for a DI to comprehend.

What always gets me with these threads that start “my friend has just”. Why don’t the OP’s admit they’ve taken on a job and haven’t a clue what they’re doing?

I thought it but didn't say it.

Decided it was better to leave it for you.

 

[ferg]

I thought log burners had to have a gravity loop in case of a power cut.

With mine it's the HW once it gets hot enough the pump kicks in.

Otherwise you get cold corrosion.

Mine has 2 pipe stats and if I could be bothered to remember or look it up I'd explain why.

 

[PEG]

All solid fuel boilers,should have the facility to "dump" excess heat,into either a dedicated heat sink/rad/thermal store,and this should be default,or not determined by stats,etc,ie; on a gravity or thermo-syphon circuit.

The problem with this age old system,is over the years,various manufacturers have added to or side-stepped these methods,with some approval of additional devices such as purge or quench circuits.

I have also seen various set-ups constructed in a "Hetas free" manner,where parallel back-up pumps,or DC pumps are added for a "melt-down" moment ...

For a true long term,reliable system,you need sized pipework,laid to falls,gravity to priority (usually HW) with heat sink on same,maybe pump assistance on CH circuit.

A well installed gravity system is a joy...and will function on a 14 storey block of flats...:yes:

 

[Knobhead]

That's an ironic thanks Geordie.