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CliveS
Hi All. New to the forum and would appreciate some help.
I’m in Spain, Costa Blanca doing odd jobs etc including afair bit of basic plumbing (new mains water pipes, PRV’s, toilets, gardenirrigation etc.) So not an expert by any means but fairly comfortable with thebasics.
At home I have wood burner at moment which I am about tochange for multi-fuel stove with a back boiler, a simple flow and return 2 portmodel. Electricity and gas prices here are getting crazy and I have access tolots of good seasoned wood so seems a no brainer.
I intend to install a simple vented CH system to supply 6rads in the villa. No HW
Header tank in the loft with 22mm flow to circuit returnbefore boiler, after pump. 22mm ventpipe on flow after boiler, to headertank. Pipe thermostat on flow line to switch pump. Small heat bleed off rad on separatethermal circuit.
Q1: What stops thepump forcing water back up the 22mm supply pipe from the header tank, ratherthan around the flow circuit of the rads? Is it just head pressure from the tank. Do Ineed a non return valve on this supply? From what I’ve read no but pleaseadvise.
Q2: Same with question with the vent pipe? No valve!
Q3: There is space under the floor, as always tight inplaces. When installing the tails to the rads, is it better to have them atsimilar lengths to each of the rads or is it not that important as the systemcan be balanced at the rads? The reason I ask is it will be easier to runlonger tails to some rads than others, rather than run flow and return to allcorners of the under-floor space.
Not an expert by any means so please excuse any obviouserrors in the above. All help appreciated. Indeed anyone fancy a long weekendin the sun / under my floor with free accomodation and lots of beer? Just buythe flights! Lol
Clive
I’m in Spain, Costa Blanca doing odd jobs etc including afair bit of basic plumbing (new mains water pipes, PRV’s, toilets, gardenirrigation etc.) So not an expert by any means but fairly comfortable with thebasics.
At home I have wood burner at moment which I am about tochange for multi-fuel stove with a back boiler, a simple flow and return 2 portmodel. Electricity and gas prices here are getting crazy and I have access tolots of good seasoned wood so seems a no brainer.
I intend to install a simple vented CH system to supply 6rads in the villa. No HW
Header tank in the loft with 22mm flow to circuit returnbefore boiler, after pump. 22mm ventpipe on flow after boiler, to headertank. Pipe thermostat on flow line to switch pump. Small heat bleed off rad on separatethermal circuit.
Q1: What stops thepump forcing water back up the 22mm supply pipe from the header tank, ratherthan around the flow circuit of the rads? Is it just head pressure from the tank. Do Ineed a non return valve on this supply? From what I’ve read no but pleaseadvise.
Q2: Same with question with the vent pipe? No valve!
Q3: There is space under the floor, as always tight inplaces. When installing the tails to the rads, is it better to have them atsimilar lengths to each of the rads or is it not that important as the systemcan be balanced at the rads? The reason I ask is it will be easier to runlonger tails to some rads than others, rather than run flow and return to allcorners of the under-floor space.
Not an expert by any means so please excuse any obviouserrors in the above. All help appreciated. Indeed anyone fancy a long weekendin the sun / under my floor with free accomodation and lots of beer? Just buythe flights! Lol
Clive