just finally got my stainless flue installed, after deciding to DIY it after being lied to on 4 seperate occasions by 4 seperate HETAS engineers. Net result of untruths being said HETAS engineers talking themselves out of a days work. Engineers 1,2,3 all insisted that a lined flue was the only way to meet current building regs, which, I knew to be a complete untruth. At this point, I was only planning on having the register plate replaced, to which, they said "Naah mate, cant do it, its not legal, needs lining" (sure it does when I found out the cost of installation). This is on a flue that had been pressure checked by my sweep and was completely fine, with good draw and no leaks. Just for sh*ts and giggles, I decided to see how much these cowboys wanted for what was effectively 3 hours labour and about 550 in parts. Cheapest quote 1000, worst 1300, which included all prices for parts mysteriously costing TWICE what I could get them online. I was willing to pay to get this done, up to 200 for labour and say 10% on online parts for the hassle of order. So, instead, rather than being ripped off for parts, I went and ordered the lot online, from reputable dealers and had asked and was supplied with all paperwork of manufacturers etc for the HETAS registration. I elected for the thickest grade 904/904 liner as I was willing to pay to get the best once the price wasnt double what it should have been. I then went and tried to find a HETAS engineer willing to fit the flue. Could I find one? Could I b*ggery. "sorry, we dont fit anyone other than our own flues"; "cant sign off a flue unless we have supplied it" at least one told the truth "All the margin is in the supplied flue so we dont fit customer supplied". So, what about the margin for the 400 in labour they wanted for a 3 hour job? Also, all of a sudden, a flue lining job wasnt necessary, they could do it with just a register plate if the unlined flue had been checked for leaks etc. One cheeky so and so told me on the phone (I have it recorded for posterity) that installed liners need removal every 5 years for inspection from the outside! Now, I had studied the regs pretty thouroughly, and it seemed as if these chaps were making it up as they went along. Which, I am sure they were. Long story short, I have employed numerous trades, all of them more skilled than what it takes to line a flue. Some have been pricey, but deservadly so (sparks, corgi etc). None have cost 400 for 3 hours labour for 2 tradesmen. And, plasterers chippies and carpenters have displayed ten times the skill of a job that I figured out in 10 minutes. The installation is fully within the regs and due to be signed off. Why do these HETAS chancers think they can get away with ripping people off like this? Is it because they as HETAS, are teh only ones other than BC who can sign it off? Some of the down outright lies came across a little like pressured marketing also, which a lot of people would fall for. Surely as registered members of a professional body, this sort of behaviour should be discouraged? The thing is, it wasnt one HETAS engineer, it was every bloody one I got in touch with! Next flue (insulated double skinned) will be a DIY job too!