Recent content by Circuit

Thanks for the feedback, I thought that she had done quite well really. And rain should no longer get into the flue like before

"Designer..."?? is his local to you only?

No, it is a Worcestor 80ic. It was installed before she had purchased the property. I don't doubt the flue had an upward slope since when I have visited her in the past, it certainly looked like it sloped upwards a bit. There was a time when MIs stated a small downward slope for conventional...

It was not so much of her complaining, as one poster said, she agreed to his fee in advance, in fact if this is reasonable then she may use that firm again for any further problems. She lives in Harrow by the way. I would have thought hourly rates would be similar across the country apart...

Just had a call from my sister. Her combi boiler would not work this morning. She got some local plumber in and he diagnosed water having got in via the flue shorting out the flame sense electrode. (there was torential rain yesterday in London). He found the flue was leaning up slightly so after...

The boiler has always been run with a burner pressure set for a 18kW output, I therefore hope that in 12 months time the HE and baffles will not have worsened.

DP you are getting rather carried away here. It is not possible in practice to reduce air flow thru a fan flued boiler to any great extent since the air pressure / velocity switch will cease to operate. Manufactures design their appliences such that should the fan start to run more slowly due to...

Well a "liar" is putting it a far too strongly, more like telling a yarn. It has been said that it is a very unwise person who takes on face value anything one hears via the Internet, and also an unwise person who takes on face value anything said by tradesmen and salesmen, as we repeatedly...

Thats more like it, a little bit of humour :wink:

ChrisR not on this forum. I have made plenty of posts on a variety of topics on a different forum, as I am entitled to do, I have never advised anyone to do anything as far as can recall since I feel "helping" people on a forum is a wasteful use of a person's time etc. Exchanging information and...

Well what folk post on forums and what they do are quite different as you well know. The forums are supposed to provide some entertainment for the readers and get them ranting, and they tended to fall for it :wink: The only modification as such I performed was to use coach screws instead...

The boiler was inspected by 2 worcester bods yesterday, and it is working normaly with 6.5% CO2, 9.5% O2 and output of 18KW. (it is a 14/19 CBi). The engineer said he had seen worse baffle distortion on other CBis, and photos were taken by them of the melted HE to be sent to R&D. The design...

croyden corgi you are right of course, my mind was rather on my worcester cbi melting heat exchanger when I wrote that and I had regressed few years when I incorrectly thought that was the case. Good job I don't do this for a living :? But to be correct for a change, the 55 - 56 critical...

When pluming is occuring, the flue gasses should be 100C, I asume this from the laws of pysics since I do not know anyone localy who has such a boiler. When the gasses are at 100C and pluming, some condencing will be occuring on the secondary HE and some will not. If the seconday HE...

I refer you to my previos post, a correctly running boiler such as you have should be 75 - 78% efficent, a condensor will be 90%, the savings per year will be small comapred with the £4500 outlay you are considering. Wait a few days and see what the pros think on this forum. Please bear in...