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ok, now work out if the 18 rads can even output that amount of heat :lol: you will most likely find that total output of all your rads is 15-25kw. the idhee works out the size of the boiler need for a rapid cold to 21 degrees in one hour and even then it over estimating it. your whole...

well, i can't see the job but it does sound off to me. start off with this http://www.idhee.org.uk/calculator.html if it comes bad saying you need 44kw boiler then i was be very surprised. you will need a RGi to range rate the boiler to match the load better and make sure the water flow...

just to add as people who are employed by baxi cant say this but the heat exchanger design is weak. they need the a flow and return temps to be with in given range of each other to get long life out of them.

two 24kw boilers add up to 48kw!!!! from what you have said my guess is they are baking them self stupid. :shock: they are basically being put under to great a thermal strain and cracking. what you need to do is work out what the real heat load of your home is. and try and range...

achrn, I agree with Alec1. your builder is the man you need to direct your thoughts at. its him who pick the Muppet and it will be him that needs to get it sorted.

its the carbs, need to cut them out :wink:

i have lost 3 stone since my picture was taken...

just to add, intergas beats every other boiler inc atag,viessmann,valliant,WB :mrgreen:

if its going in the garage and space is not limited then you can have any boiler under the sun with a unvented cylinder. I understand a "all in one" storage combi m, maybe appealing but they are really for when space is a bit tight. you best bet is a heat only boiler that heats an...

if anything. it would be good if he was not gas safe or g3. then you can make the builder redo all the work :lol:

even though i forget to carry my card most of the time I could tell you my gas safe of by heart. when you get the number you need to check it on the gas safe website. on the website it will show a picture of him. the Reason I am telling you this is its not hard to get any old number of the...

my G3 ticket is coming up for renewal...should i bother?