Recent content by DrChaz

No water cock in the pavement that I can see, no water in the garage, and yes, patio and then tarmac across to the garage :S The accumulator idea is well worth bearing in mind if I can't get the cold water flowrate I need off the main without rework. At the end of the day, I don't want to...

I have no idea where the water mains enters - the stopcock is underneath my kitchen sink at the rear of the house, I do have a garage but it is separated from the house by about 7 metres.

I've currently got a Potterton Netaheat 16-22 which does an ok job of heating up the house - I'm reinsulating as well, so a CH output of 24 or 29kW will be fine, I think. Cheers, Derek

The entire frontage of the house to both boundaries to the left and right is tarmac'd, unfortunately.

No idea - I suspect I'd have to have my drive way dug up though, wouldn't I?

First off, thank you for your help, you've replied very promptly each time I've posted! Secondly, it's just occurred to me that my cold mains supply performance may have a bearing on this - I measured it the other day for the Trevi Boost, and I'm getting 19 l/min @ 1.8 bar out of the kitchen tap.

Thanks Dr D - are you aware of any suppliers in the south-east? Worthing, Sussex, to be precise.

Yes, they've obviously cracked that one - odd how the solution has manifested itself in a domestic boiler :lol: Now, of course, my dilemma worsens because I can also consider a Worcester Highflow 440 - do these need a G3 cert to install like the CD50?

The price seems comparable to the CD50 in that case. How on earth can they claim 108% efficiency though??

Well, I don't know if anyone is going to see this resurrected thread, but after getting conflicting reports from plumbers, I decided to stick with like-for-like and keep my HW cylinder and get a bigger CW storage cistern to provide for all the DHW demand, along with a Trevi venturi shower for...

Thanks for all the info guys - I got home today after working away to measure up and see what fits where, and both the 937 and CD50 aren't going to fit anywhere without ripping the kitchen to pieces, so I might have to settle for the 837 and hope that it copes with the demands of any potential...

If I might add my tuppence worth... if the 937 was simply 2 tanks in series (acting as 1 tank as DD said earlier) then why do they bother with 2 tanks? why not just have 1 big 15 litre tank?

Thanks for the prompt reply Dave - it was precisely those features you mention that got me interested in the 937 :wink: Presumably in practice the drop from 20l/min to 15l/min hardly ever happens in normal use, but if the twin tanks were depleted, would the drop be badly noticeable do you...

Hi all, I've got a 4 bed bungalow with loft conversion, with 1 en-suite downstairs, and main bathroom and another en-suite upstairs. I've currently got a very old Potterton Netaheat 16-22 with gravity-fed DHW, which gives absolutely rotten flow upstairs, and is getting unreliable. I'd like...