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Trust pilot review scores Intergas 4.3 Baxi 4.4 Viessmann 4.1 Ideal 4.8 Vokera 4.2 Vaillant 4.5 Worcester 4.6 Rinnai 0.0

Thermal imaging camera? How often is occasionally?

Part L Building Regs; replacing a fixed appliance with one with an efficiency less than the one being removed is contrary to regas. Should be HP or a better efficiency appliance than the HP.

Is this your 'stay-in' house for say 20 years or a stepping stone? If the former, when you choose an installer whose judgement you trust ask how much. He's there on the job, say it adds £350, over 20 years you've lost nothing and have started from a known good position rather than a maybe. Of...

Why would there be dirty water in a boiler replacement, the system should be thoroughly cleaned. Get another heating engineer to survey regarding boiler and pump.

My preference is the opposite, an installation will have one max flow rate for the design so a look along flow rate axis I’ll show available residual head.

People researching what boiler to purchase and who have 25 minutes to waste might benefit from listening to the recording of a Mr. Know-It-All's call in to Vokera radio

Vaillant invented the combi, Vokera, or the guy that started it 40 years ago bought them into the UK before he got his own designed and started the company, all the others came later.

OK, well 1:10 is lower than 1:7 and 1:4 so look at it that way. Check the flow rate at your cold tap in the kitchen with a measuring jug and timer. If you have 11l/m go 25KW boiler, if 13 go 12l/m and 30kW, 15 go 14l/m and 35kW unless you like really hot water at the tap. Viessmann isn't...

Frankly none of the above even if I didn't work for Vokera and my life doesn't depend upon it but my wife does (we have one). Vokera Unica Max 30 or 35C depending on your cold main. Large stainless bore hex, OpenTherm with or without weather compensation. Plastic is not bad, there re many...

Beat me to it!

Saying you have difficulty using smart devices and apps on a forum which is accessed with a smart device and an app is, well, a little odd. Better perhaps that the original poster heed the chap who knows how things work than the correspondent who declares he or she doesn't using the media they...

The Ciao is now the X model which in the UK we know as the Vokera Vibe Max, the 24CSI I think has an aluminium heat exchanger, the new Ciao has the stainless exchanger. The Vibe Max and other variant have been very successful in the UK

What type of heaters Beretta make dozens?

Is the boiler fitted with an ali or stainless steel heat exchanger

Don't know about Worcester or Baxi, most combi's have a hot water 'power' and a lower heating output. Better combi's can be range rated on the heating output. Range rating means the maximum heating output is limited eg a three bedroom semi built in the 30's with solid walls is very unlikely to...

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You are a very careful consumer and an ounce of preparation is worth a pound of cure but in the end you'll have to trust somebody.

To the cynics; if the manufacturers are lying then call them out. With the correct amount of gas and a stated flow rate the combi boiler will raise that flow rate by the temperature claimed, this is confirmed not in nirvana but a lab and then certified independently (there is a tolerance but...

No and yes