I would be grateful for the collective advice of heating engineers.
I live in a large detached property which is over 3 levels and has 5 bathrooms in total. Each floor has 11 radiators each and the central heating and hot water is supplied by a combi boiler on each floor ( 3 combi's in total) I am looking to change the central heating system to a "proper system" and install a system boiler with an unvented cylinder. Each level would have its own zone valve and controls so the central heating can be independently controlled.
I have had a few engineers come out to have a look and they have recommended 2 system boilers connected together with a 300L water cylinder. I have been recommended the following options: 2x Worcester Bosch 35kW, 2x Vaillant 37kW, 2x Atag i40S, 2x ACV prestige solo 42 or 1x ACV heat master 70TC (this has a built in water cylinder)
Water cylinder: Either a standard megaflow 300L or ACV smartline 300L with TMV
In terms of material, this has been specified as:
Low loss head, 1x twin head CH pump, 1x bronze pump, 4x zone valves amongst other things.
I realise this is a big job and from doing some research, it seems apparent that ideally a heating engineer with some experience of fitting commercial heating systems would be beneficial as this is not a straight forward system to fit out. Obviously I want the job to be done correctly so that the system works optimally and lasts for many years to come. There are quite a few options and I am not sure which to go for.
What would your advice be with regards to:
1) Boiler size and recommendations above. Would 2x Bosch or 2x Vaillant be sufficient? Do both boilers switch on at the same time whenever there is a demand for CH or HW or can it be programmed so that only 1 boiler will work if needed?
2) Is there any advantage to the ACV smartline water tank over a conventional system. There is a massive difference in price between the two.
3) I realise that the ACV are commercial boilers. Any pros and cons with fitting them in a domestic property. From what I understand, when these boilers are connected then if the demand for CH or HW is not there then only 1 will switch on?
4) From what I have read, it is essential to have a low loss head installed?
Any other hints and tips would be appreciated.
Look forward to your recommendations. Hope the description above is easily understood!
cheers
I live in a large detached property which is over 3 levels and has 5 bathrooms in total. Each floor has 11 radiators each and the central heating and hot water is supplied by a combi boiler on each floor ( 3 combi's in total) I am looking to change the central heating system to a "proper system" and install a system boiler with an unvented cylinder. Each level would have its own zone valve and controls so the central heating can be independently controlled.
I have had a few engineers come out to have a look and they have recommended 2 system boilers connected together with a 300L water cylinder. I have been recommended the following options: 2x Worcester Bosch 35kW, 2x Vaillant 37kW, 2x Atag i40S, 2x ACV prestige solo 42 or 1x ACV heat master 70TC (this has a built in water cylinder)
Water cylinder: Either a standard megaflow 300L or ACV smartline 300L with TMV
In terms of material, this has been specified as:
Low loss head, 1x twin head CH pump, 1x bronze pump, 4x zone valves amongst other things.
I realise this is a big job and from doing some research, it seems apparent that ideally a heating engineer with some experience of fitting commercial heating systems would be beneficial as this is not a straight forward system to fit out. Obviously I want the job to be done correctly so that the system works optimally and lasts for many years to come. There are quite a few options and I am not sure which to go for.
What would your advice be with regards to:
1) Boiler size and recommendations above. Would 2x Bosch or 2x Vaillant be sufficient? Do both boilers switch on at the same time whenever there is a demand for CH or HW or can it be programmed so that only 1 boiler will work if needed?
2) Is there any advantage to the ACV smartline water tank over a conventional system. There is a massive difference in price between the two.
3) I realise that the ACV are commercial boilers. Any pros and cons with fitting them in a domestic property. From what I understand, when these boilers are connected then if the demand for CH or HW is not there then only 1 will switch on?
4) From what I have read, it is essential to have a low loss head installed?
Any other hints and tips would be appreciated.
Look forward to your recommendations. Hope the description above is easily understood!
cheers