How do I convert my pipe system when I fit a new Glow-worm Ultracom HXi 18 condenser boiler in place of my present Glow-worm 56F backboiler which has 28mm gravity feed pipes & 22mm CH circuit pipes? I think the general idea is to fit a 3-way zone valve with cylinder stat but Iwould welcome further info. I have fitted several boilers over the years, and a complete heating system in one house, but the boilers have always had F &R in 28mm
for the HW & 22mm for the pumped CH. This is my first condenser boiler - hence a little unfamiliarity. I have had many years of trouble-free service from my installations and I like to get things right. Alana2
for the HW & 22mm for the pumped CH. This is my first condenser boiler - hence a little unfamiliarity. I have had many years of trouble-free service from my installations and I like to get things right. Alana2
