System boiler
Hi, i recenty had my regular boiler replaced. Initially i was quoted for a direct replacement, however on the day the replacement was due the plumber / gas engineer recommended that the existing regular boiler to be replaced with a system boiler. I asked if this would alter the performance if i agreed to his recommendation, he stated no. I asked what would be needed to be done for the conversion, he responded by stating the the only alteration would be to remove the expansion tank (and leave the storage tank). Based on his recommendation i agreed. My question is, is his recommendation valid, is it correct and is it common practice to have a system boiler installed in such away? Will experience limited perfornance had i stuck to the initial configuration of a direct regular boiler replacement.Also, will i have issues with pressure in the system. My understanding is a boiler system is a closed system but i have a storage tank in the loft. Your detailed answer would be greatly apprectiated. Thank you
1 Answers
SJB Plumbing & Heating
0 Reviews
So basically with a system boiler your feed and expansion tank should be removed and capped off all together and also the existing heating pump should be removed and each end joined together so it’s piped straight through. With the installation of the system boiler it has an expansion vessel and pump in the boiler housing it’s slf and should have a cold feed connected to the return pipe with a filling loop on it so you can fill up the system. This system is better than the original open vented system you had previously the only issue you may come across is leaking pipe joints depending on their condition as they will now be under pressure where as before it was just gravity pressure from the tank to the lowest point usually about 0.24bar and now it should be running at 1.5-2 bar
5th Apr 2024
Helpful Answer? Vote Up 
+ 3
+ 3
Post your job & get responses from
local heating engineers.
Read reviews before you decide to hire.
Post your job & get responses from local heating engineers.
Read reviews before you decide to hire.
