Which boiler

[Irish]

Evening all, I got my gasafe a few months ago and have only really dealt with combi installs. I've been given a job to do where the last guy done a runner leaving the customer with a job half done so far he has installed a s-plan with an unvented cylinder but no boiler so I was wondering which boiler to install and should I use the towel warmer in the main bathroom as a bypass and if so do I connect it before the pump or between the pump and zone valves?? Thanks in advance

 

[stevetheplumber]

if you want a summer towel rail it goes between pump and zone valves however an open rad is no longer considered sufficent and a srung bypass is needed as well you could put this on the towel rail circuit then the towel rail can have a trv

 

[SafeGasInstall]

if you have not done s plan with system boiler do not get involve cos you have to commission the cylinder too ,
why not use a honeywell auto bypass

 

[Anders0n]

Heat only boiler, I use the Worcester Ri models.

And don't use the towel rad as a bypass, fit a bypass valve between primary flow (just after pump) and the return in the airing cupboard, nice and accessible if possible.

 

[Irish]

Ok thanks

 

[AWheating]

the towl rail must have thermostatic and timed control as per regs. if you do not have your unvented cylinder cert then you will need to get a qualified engineer to sign it off/commission it.

 

[Irish]

Yeah got my unvented cert also