boilers

dan holmes_2

You have to first trust the mech you hire!!!! The rest will work out. Dont get to hung up on eff. Make sure what ever you install can be repaired 24/7. The only thing you own that must work all the time is your heat! Ask the installer if he has parts for the heatwise gun in his truck that can be installed after 5 pm on friday or will you wait till monday?

clay_2

boilers

im in the market for a new boiler and the more homework i do the more confused i get. are these european boilers such as the BIASI's which are of the 3-pass design , are they much better in fuel consumption than a new single-pass pin type boiler.I have compared the AFUE efficiency of both types and were only a 1% difference between them. SEcond question : someone was praising a gun called Heatwise, they made it out to be the next best thing since sliced bread. I went to there web and looked at the manual and parts illustration and diagrams and saw nothing more than any other burner out there.the 3 rd ? is about plumbing , is multiple circulator or one circulator with multiple zone control valves better, or is this a personnel preference? cold start verse maintain? and finally im starting to here about installing the circulator(s) on the supply side instead of return side, arent you subjecting the circulator to a lot more heat? thank you for the response.

Joel_3

answers

First find a good contractor and you'll be all set

in general the AFUE numbers are very inaccurate and yes the euro 3 pass designs are far supierior to pin styles ,esp boilers featuring outdoor reset . You are not subjecting the circulator to allot more heat , that's an old wives tale or old oil man's tale as the case may be . pumpimg away is religon

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Joe Brix

3 pass cast iron boilers

normally can handle lower return water temps beter so you can use outdoor reset more effectively. Easier to wrap a lot of insulation around a horizonal flue boiler. Big item: they're easier to clean so efficency stays higher over the years. Heatwise is only spec'd on a few boilers like Biasi. Riello has always been my choice, but the Beckett NX is also getting good reviews.

Checkout Biasi and Pennsotti for lower mass 3 pass boilers.

The Burnham MPO is also a great US of A model.

Weezbo

everything is contingent on where you will be ...

and where you are now. *~/:)

the designe of the boilers has had a bit of think spun in on it and the time and effort was worth it. The oil side of the equasion had i a screaming nickel id likely buy a Viessmann,were i not quite as flush the buderas ,and i am so liking the idea of the Burnham MPO would be something a guy could "go with" that i have asked them for and have recieved some adverts for my Very White van:)

Tundra

I have both the Biasi and Heat Wise in my own home. The Biasi works best as a cold start boiler. Your single pass pin type boilers will not put up with this style of operation. AFUE is a starting point for judging efficiency and is really not a good way to assess boilers. A newer and hopefully better system is currently being developed Brookhaven National Labratory. Maintence is also a significant issue. It typically takes me fifteen minutes to clean a Biasi and an hour and a half to clean a Burnham pin type boiler. The Riello is an excellent burner but all the parts (except the nozzle) are proprietary. The Heat Wise parts that you are likely to ever need are off the shelf items. You can not compare the exploded views of different burners and see any significant difference. You might as well make the same comparison between your old Chevy and a NASCAR engine. The only way to tell is by using combustion analisis equipment. The big problem with both the Riello and the Heat Wise is that when many of the "Old School" technicians see them they freak out because it is something different.