Guys,
I know this has probably been done to death but i cant seem to nail this down.
Just to give you some background, i am not a plumber obviously but have read as much as i can to help myself.
I currently have a conventional Gravity fed system with a Baxi back-boiler, I recently had an extension built with 20sqM of wet underfloor heating fitting, the rest of the house remains on traditional radiators.
I have 2 bathrooms both with showers, upstairs is pumped and downstairs is gravity fed.
Currently the system seems to work just fine, radiators work as and when i need them, the underfloor heating is fed via its own zone and valve and has its own wireless (honeywell 927) programmer/thermostat, i was assured that the boiler i have was fine for this new underfloor system but i think it cycles a little too often but that's another problem.
I really want to remove my chimney breast which in turn means i will need a new boiler, now im split between what system to get, I would like a combi for reasons of space saving and instant water but as i have 2 showers (which are not regularly used together but it does happen occasionally)and the underfloor heating ( will a combi modulate down low enough for jsut the underfloor as for all but the coldest few months is more that adequate to heat the entire downstairs)
Alternatively its the system boiler and sealed tank, but this comes with its issues in my house ( i think... )i still have a lead water main, but i have really high pressure....so high that the garden hose has to have a PRV to stop it popping the fittings off the hose ( yes really) high pressure is good i think but the lead pipe i would have thought will affect the dynamic flow rate ?? (small bore pipe) also i believe this system requires some sort of pressure relief pipe....which i am not sure could work for me ??
i would have to have the boiler in the loft as i don't have an exterior wall to allow for a flue to be fitted, i just want to make sure i choose the best system for me, i have had really bad experiences in the past with plumbers so just want to make sure i know what's what's before getting some quotes
I know that's a very long post but thanks in advance for any help you can give me.
Edit - sorry I totally forgot to actually ask some defined questions ,
Other than the usual combined v stored system pros and considered is there any reason to chose one over the other because I am.mixing both underfloor heating and rads ?
Can I have both boilers in the loft ? From reading I think I can but the only place for a cylinder if I go that way is under the stairs (its current position)
mark
I know this has probably been done to death but i cant seem to nail this down.
Just to give you some background, i am not a plumber obviously but have read as much as i can to help myself.
I currently have a conventional Gravity fed system with a Baxi back-boiler, I recently had an extension built with 20sqM of wet underfloor heating fitting, the rest of the house remains on traditional radiators.
I have 2 bathrooms both with showers, upstairs is pumped and downstairs is gravity fed.
Currently the system seems to work just fine, radiators work as and when i need them, the underfloor heating is fed via its own zone and valve and has its own wireless (honeywell 927) programmer/thermostat, i was assured that the boiler i have was fine for this new underfloor system but i think it cycles a little too often but that's another problem.
I really want to remove my chimney breast which in turn means i will need a new boiler, now im split between what system to get, I would like a combi for reasons of space saving and instant water but as i have 2 showers (which are not regularly used together but it does happen occasionally)and the underfloor heating ( will a combi modulate down low enough for jsut the underfloor as for all but the coldest few months is more that adequate to heat the entire downstairs)
Alternatively its the system boiler and sealed tank, but this comes with its issues in my house ( i think... )i still have a lead water main, but i have really high pressure....so high that the garden hose has to have a PRV to stop it popping the fittings off the hose ( yes really) high pressure is good i think but the lead pipe i would have thought will affect the dynamic flow rate ?? (small bore pipe) also i believe this system requires some sort of pressure relief pipe....which i am not sure could work for me ??
i would have to have the boiler in the loft as i don't have an exterior wall to allow for a flue to be fitted, i just want to make sure i choose the best system for me, i have had really bad experiences in the past with plumbers so just want to make sure i know what's what's before getting some quotes
I know that's a very long post but thanks in advance for any help you can give me.
Edit - sorry I totally forgot to actually ask some defined questions ,
Other than the usual combined v stored system pros and considered is there any reason to chose one over the other because I am.mixing both underfloor heating and rads ?
Can I have both boilers in the loft ? From reading I think I can but the only place for a cylinder if I go that way is under the stairs (its current position)
mark
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