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Are you saying that your arrangement is a conventional indirect hot water cylinder but with the addition of a secondary heat exchanger (coil internal) for the shower? What I was talking about is an external heat exchanger (see diagram below) It is said that the principal of thermal stores is...

I've just been reading a book titled "Central Heating" written by Patrick Mitchell. It's a really good book with lots of information I must say. On page 48 and 49, an example is mentioned: "the water in the mass storage tank is heated indirectly by hot water from the boiler passing through a...

Do Intergas require any modification to work OV or is it just plug & play? What's the difference between system boiler and OV boiler technically?

Good morning everyone, I've been thinking more. I've now decided that I want an old-fashioned open-vented system (with a pumped shower). One of the reasons is because I travel abroad a lot and the last thing I want is an unvented cylinder to explode while I'm away. I understand that unvented...

I got that from the Intergas website. If there is a latest version, can you please provide a link?

From looking at the following Intergas brochure (see link below), they only use concentric flues (60/100mm), whereas Atag can either use 2 pipes separately (one for exhaust gas and other for air intake to the boiler, or air from the room if there is ventilation...

Option 3 or 4.

OK thanks guys for the clarification. From the reading the brochures, it seems that the Atag models (both A and Q series, but not iS series) has more flue options than Intergas. If you look at the link below and scroll down to page 2, there are diagrams with many flue options especially with...

Thanks for the heads up. So, I tried the calculation with the The Whole house boiler calculator and the result was about 32kW. Would 35 or 40kW boiler be suitable? So, I've reading more about Intergas and compared it with Atag. Both are Dutch. The prices and details from Plumbcenter are as...

Thanks for the reply. Yes, just the cast iron HX. Also because the Kidd boiler was one of the very few (the only one?) condensing boiler brands that could have a flue up the chimney. Intergas sounds interesting. I'll take a look at their website for more info. By the way, that Hamworthy...

Is there an alternative (cast iron HX) to the Kidd boiler? Is this Hamworthy product any good? https://www.hamworthy-heating.com/commercial-boilers/purewell-variheat-condensing-boiler The smallest size available is 70kW, which is a bit big for my house. I was thinking maximum 30 or 40kW...

https://www.diynot.com/diy/threads/does-anyone-know-if-archie-kidd-are-still-trading.458321/#post-3639388 Hi, my first post. I'm confused by the thread above. Who passed away? I think the founder was Archie Kidd whereas Adam Kidd was his son, wasn't he? Are both deceased now? I wish to buy a...