Recent content by Spectric

Hi all What's your thoughts on this idea: Keep the two 4043 zone valves as normal but place a three port valve(with a two port head) before them with B as the bypass and A supplying the two zone valves. The demand inputs from tank stat or room stats go to the zone valves as normal but the...

Hi there Have read all these but I like the idea of a controlled bypass rather than an automatic pressure bypass or a constant fixed bypass as then I would only have a flow back to the boiler return when it was required so keeping the return temperature lower. I have been looking at the...

Hi all Using a three port valve never occurred to me, but are we saying that you replace the three position head with a two position head? Just getting my head round this, you only now have two positions on the three port valve, no mid position. So without any power it would divert the flow...

Hi there Thanks for the reply. The reason I opted for the Alpha2 is the auto adapt feature to reduce energy and improve the efficiency. There seems to be so many views on using these pumps, the only common theme seems to be don't use a pressure controlled auto bypass. The boiler an 18Ri...

Hi all With these new so called smart circulators such as the Alpha2 in auto adapt mode what bypass are people fitting? Grunfos say not to use the auto pressure types, the regs say you can't use a lockshield and others say use the Taconova setter but looking for your thoughts.

Hi all Just brought one of those bendit now pipe benders as I am getting to old for the hand held ones with 22mm pipe! My question is, the roller is adjustable so what sort of pressure should be applied to the back of the guide and at what point in relation to the edge of the former, IE...

thanks for that

Hi all Need some advice regarding the new condensing boilers, and sizing. I understand about the requirement that the return flow temperature is important to get the boiler to condense and this is why you need to size the rads more carefully these days but using the whole house calculator I...

Hi all Have a shed with pitched roof, 25 degree one side and 30 degree's the other with a total area of approx 16 square metres. Sturdy construction and want a nice roof, not felt. Have looked at Tapco slates and ECO slates but I am not a roofer and have no experience with local roofers so...

Hi all With regards to smoke detectors, if they are backed up with an internal battery then they can be spured of the ring main or taken from the lighting circuit as loss of power has no effect on their operation, the mains just keeps the battery in a state of full charge. This is similar...