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I'm sorry for the long post but I'll try to give you as much info as possible.
I have a large house in Brugge, currently running 3 boilers 2 x 54Kw in cascade and 1 x 24Kw with own circuit, all boilers are about 30 years old and I expect running at about 50% efficient, these need to go, well past sell by date. Had a quote from a local heating engineer to fit a new 90Kw condensing boiler €15,000 = £11,500 ha ha ha ha can't afford that
The house needs some renovation so installing new plant isn't that much of a problem, here are my thoughts on what we'd ideally like to do.
Install a new condensing combi boiler for the ground floor and zone it into 3 zones each with it's own programmer and thermostat, "possible"?????
This would only need to supply hot water to the kitchen tap.
I've calculated that the boiler size would need to be 30Kw but the rads we have and want to keep are the old cast iron type, they are big, probably too big, how do you calculate the BTU of these old rads? I would run new pipework to the old rads, is 22mm for the new circuit and 22mm for the rad feed OK????
Continue using one of the old 54Kw boilers for the upstairs for the next years or so until we can afford to get another boiler to replace it.
I could also go for underfloor heating on the ground floor, most of the floors will be re-tiled, we have concrete floors now with a 2" screed and basement below so pipework access is good, would a wet underfloor heating system work if I was to cut grooves into the present floor to a depth of about 2" and lay the pipe into the groove and then fill in and tile over??? then leave the old rads for looks and maybe get away with a smaller boiler = less gas used, your thoughts??????
Last years gas bill for 5 months that we used the heating was €6,000 = £4,000 all rads have TRVs and we didn't heat all the house, surely we can do better with a little investment.
I'm up for any ideas that you guys may have that will save me money and make us warm.
I'm capable of installing all the new pipework myself just not to sure about how things would be laid out and the technical side of things any help would be very appreciated as I'm starting to get some ear ache from her indoors as it starts to get colder.
Thanks in advance for you help
I have a large house in Brugge, currently running 3 boilers 2 x 54Kw in cascade and 1 x 24Kw with own circuit, all boilers are about 30 years old and I expect running at about 50% efficient, these need to go, well past sell by date. Had a quote from a local heating engineer to fit a new 90Kw condensing boiler €15,000 = £11,500 ha ha ha ha can't afford that
The house needs some renovation so installing new plant isn't that much of a problem, here are my thoughts on what we'd ideally like to do.
Install a new condensing combi boiler for the ground floor and zone it into 3 zones each with it's own programmer and thermostat, "possible"?????
This would only need to supply hot water to the kitchen tap.
I've calculated that the boiler size would need to be 30Kw but the rads we have and want to keep are the old cast iron type, they are big, probably too big, how do you calculate the BTU of these old rads? I would run new pipework to the old rads, is 22mm for the new circuit and 22mm for the rad feed OK????
Continue using one of the old 54Kw boilers for the upstairs for the next years or so until we can afford to get another boiler to replace it.
I could also go for underfloor heating on the ground floor, most of the floors will be re-tiled, we have concrete floors now with a 2" screed and basement below so pipework access is good, would a wet underfloor heating system work if I was to cut grooves into the present floor to a depth of about 2" and lay the pipe into the groove and then fill in and tile over??? then leave the old rads for looks and maybe get away with a smaller boiler = less gas used, your thoughts??????
Last years gas bill for 5 months that we used the heating was €6,000 = £4,000 all rads have TRVs and we didn't heat all the house, surely we can do better with a little investment.
I'm up for any ideas that you guys may have that will save me money and make us warm.
I'm capable of installing all the new pipework myself just not to sure about how things would be laid out and the technical side of things any help would be very appreciated as I'm starting to get some ear ache from her indoors as it starts to get colder.
Thanks in advance for you help