Glenn Stanton

Unknown

That is a question that comes up from time to time. The reason that we are sticking with Stainless Steel has to do with the fact that in many cases, these 90%+ boilers may be installed in a system that does not have low enough temperatures to provide for a condensing situation. A 90%+ boiler installed in a system with copper fin baseboard that has been sized to operate with 180°F water will generally have a return water temperature of 160°F at best. If this were the case the flue temperatures would be well above the 200°F limitation for safe operation with PVC venting material. We can't control where or how these boilers are going to be applied but we can control the tolerance of the venting material if and when they are misapplied. That's why we stuck with AL29-4C stainless vent.

Glenn Stanton

Manager of Training

Burnham Hydronics

U.S. Boiler Co., Inc.

Geo_5

Burnham boilers

Glenn, I was wondering why your 90%+ eff boilers still must be vented with Stainless steel ?.

John R. Hall

Speaking of Glenn Stanton

My hats off to Glenn for providing good insights into the "pros" of hybrid systems. His comments appear in the 10/17 issue of The News. Hope you all can get ahold of a copy and offer your feedback.

Unknown

Thanks John

It was great having the opportunity to contribute to the article even though the pictures weren't exactly the preferred resolution. Thanks again.

Glenn Stanton

Manager of Training

Burnham Hydronics

U.S. Boiler Co., Inc.