TeamRocket
New Member
Hi All,
Looking for some advice regarding pipework sizing for an upcoming renovation of a 1880s 4 bed property.
Entire house is going to be re-plumbed in plastic rather than copper, gas combi boiler will be fitted and the old lead mains supply replaced with 25mm MDPE.
The mains water enters at the front of the property before running approximately 10-12m to the rear where the kitchen on the ground floor and 2 bathrooms on the first floor (both will have a bath and shower) are located. The boiler is also positioned to the front of the property where gas enters.
1. Should the cold and hot water feeds to the rear of the property be run in 22mm or 15mm? Given there are baths I would have thought that 22mm would be preferable for quicker filling?
Can a combi boiler deal with 22mm for the hot water?
2. Would the showers pressure be ok being teed off the 22mm in 15mm?
3. For the central heating, what size pipe would be recommended for the flow and return?
Downstairs there will be 8 radiators and upstairs 7 radiators. Previously we’ve had 22mm flow/return with 15mm rad tees, but that was within a warmer property.
Thanks in advance.
TeamRocket
Looking for some advice regarding pipework sizing for an upcoming renovation of a 1880s 4 bed property.
Entire house is going to be re-plumbed in plastic rather than copper, gas combi boiler will be fitted and the old lead mains supply replaced with 25mm MDPE.
The mains water enters at the front of the property before running approximately 10-12m to the rear where the kitchen on the ground floor and 2 bathrooms on the first floor (both will have a bath and shower) are located. The boiler is also positioned to the front of the property where gas enters.
1. Should the cold and hot water feeds to the rear of the property be run in 22mm or 15mm? Given there are baths I would have thought that 22mm would be preferable for quicker filling?
Can a combi boiler deal with 22mm for the hot water?
2. Would the showers pressure be ok being teed off the 22mm in 15mm?
3. For the central heating, what size pipe would be recommended for the flow and return?
Downstairs there will be 8 radiators and upstairs 7 radiators. Previously we’ve had 22mm flow/return with 15mm rad tees, but that was within a warmer property.
Thanks in advance.
TeamRocket