F
fr33z1ng
Hi all hope you can help me with my dilemma.
Scenario : 1950s built detached house in London
Approx 150 sqm Ground / 140 sqm 1st Floor / 100 sqm 2nd Floor
Double Glazing Argon Filled Low E Stuff
Pitched Roof with 100mm Celotex
Walls Cavity with insulation
6 Bedroom
5 Bathroom (3 Shower / 2 Baths)
10 Radiators ( 7 on 1st Floor / 3 on 2nd floor)
5 Towel Rails (Water Heated)
Shared Occupancy (7 Adults / 4 Children)
Typical Evening Usage : 8 Showers + 1 Bath to be taken approx 10 min each over a period of 4 hours - possibility of Bath run at same time as 2 other Showers.
Typical Morning Usage : Washing up / Washbasins / 2 Showers one after the other over a period of 2 hours.
Underfloor Heating on Ground Floor (approx 700m pipe) - covered in tile over 100m2 and 18mm wood over 40m2.
I have had 3 plumbers come in to design system..hence dilemma
Plumber 1 : 2xBoilers Keston 28 Qudos + 1x400l Unvented Tank
Plumber 2 : 1xBoiler Valliant 837 + 1x500l Unvented Tank
Plumber 3 : 1xBoiler Veissemann 200W 35Kw + 2x200l Unvented Tanks
Which of these will provide me with the most efficient system and enough water for my purpose - I also have 700m of underfloor heating to consider.
Underfloorheating only requires water @ 30 deg is there a boiler which can have such an output for 1 zone and 80 deg for another ( water tanks + radiators + towel rails ) ? Or is this not the right way to go about things - I want max condensing for efficiency ?
Is one 35kw boiler better than 2x18Kw ones? I was thinking perhaps run 1 tank and underfloor heating off one and another tank and rest of heating /rails of the other ? System would be a s-plus plan ? 4 zone Hortsmann programmer ? would it be wise to run the tanks in parallel or split 1 tank for kitchen + 2 bathrooms and the other for the remainder 3 ? How about in parallel and manually switching one off in summer when demand is not that high ?
Apologies in advance for the lengthy note but wanted to provide as much info so I could get some realistic feedback.
Scenario : 1950s built detached house in London
Approx 150 sqm Ground / 140 sqm 1st Floor / 100 sqm 2nd Floor
Double Glazing Argon Filled Low E Stuff
Pitched Roof with 100mm Celotex
Walls Cavity with insulation
6 Bedroom
5 Bathroom (3 Shower / 2 Baths)
10 Radiators ( 7 on 1st Floor / 3 on 2nd floor)
5 Towel Rails (Water Heated)
Shared Occupancy (7 Adults / 4 Children)
Typical Evening Usage : 8 Showers + 1 Bath to be taken approx 10 min each over a period of 4 hours - possibility of Bath run at same time as 2 other Showers.
Typical Morning Usage : Washing up / Washbasins / 2 Showers one after the other over a period of 2 hours.
Underfloor Heating on Ground Floor (approx 700m pipe) - covered in tile over 100m2 and 18mm wood over 40m2.
I have had 3 plumbers come in to design system..hence dilemma
Plumber 1 : 2xBoilers Keston 28 Qudos + 1x400l Unvented Tank
Plumber 2 : 1xBoiler Valliant 837 + 1x500l Unvented Tank
Plumber 3 : 1xBoiler Veissemann 200W 35Kw + 2x200l Unvented Tanks
Which of these will provide me with the most efficient system and enough water for my purpose - I also have 700m of underfloor heating to consider.
Underfloorheating only requires water @ 30 deg is there a boiler which can have such an output for 1 zone and 80 deg for another ( water tanks + radiators + towel rails ) ? Or is this not the right way to go about things - I want max condensing for efficiency ?
Is one 35kw boiler better than 2x18Kw ones? I was thinking perhaps run 1 tank and underfloor heating off one and another tank and rest of heating /rails of the other ? System would be a s-plus plan ? 4 zone Hortsmann programmer ? would it be wise to run the tanks in parallel or split 1 tank for kitchen + 2 bathrooms and the other for the remainder 3 ? How about in parallel and manually switching one off in summer when demand is not that high ?
Apologies in advance for the lengthy note but wanted to provide as much info so I could get some realistic feedback.