?? new Revolution condensing boiler, any comments

tim smith

Just soliciting any feedback on the new redesigned condensing revolution boiler.

Unknown

Tim....RE: Revolution II

I hope you don't mind if I interject a few statements about this new product that was just unveiled this past month.

The Revolution II is a 90%+ AFUE that incorporates the same successful design and performance of the Revolution boiler that can now be installed in both Condensing and Non-Condensing applications. It incorporates a stainless steel heat recovery unit with an integral stainless steel coil. Flue gasses are passed through this recovery unit before being piped to the outside where temperature is exchanged to return water that is being pumped through the internal coil. The colder the water, the more the unit condenses. Unlike most of the condensing boilers on the market, the Revolution II utilizes cast iron construction and conventional controls and burner tubes. Due to the possibility that condensing boilers can and are often misapplied in applications requiring high temperature water or non-condensing applications, we are equipping the Revolution II with AL29-4C stainless piping.

This boiler is now equipped with standard S8610 based spark ignition as will future Revolution boilers. This boiler is the result of taking an already very good product and refining it to meet the needs of condensing applications by utilizing very simple and trouble free technology. The original Revolution is still available as always. Take a look at the link below and let us know what you think!

http://www.burnham.com/lit/RevIIlit.pdf

Glenn Stanton

Manager of Training

Burnham Hydronics

www.burnham.com

tim smith

REMOVED COMMENT

Edited by Tim 1-7-05, this comment was out of line.

Larry_10

hay guys can you tell me what Condensing and Non-Condensing boiler is i have a buderus what would that be

thanks
still learning

jbplumber

Nice spin...

"Due to the possibility that condensing boilers can and are often misapplied in applications requiring high temperature water or non-condensing applications, we are equipping the Revolution II with AL29-4C stainless piping."


The web site titles this "feature" as "Superior Safety Standards". "Stainless steel venting won't melt or corrode, guaranteeing safe operation."


I think this is a move in the right direction for Burnham, but I am anxious to see them come up with a boiler that pushes the technological envelope.

jbplumber

Your Buderus is non-condensing...

The wall-hung Buderus condenses. Hrmmmm... I'm sure the others could explain this much better than me, but when you extract too much of the heat from spent fuel gases, the moisture in them condenses. It is very acidic and that is the reason your boiler shouldn't run with a return temp lower than 140 for extended periods. The acidic condensate will corrode your boiler. Typically, condensing boilers have stainless steel heat exchangers and are designed so that the acidic concentrate can safely drain out of the boiler where it can be neutralized with alkaline substances and then safely run down the drain. In order to get to 90% or better efficiencies, the flue temperatures have to be low enough that they will have condensate.


The Revelution II uses a cast iron heat exchanger to get it up to normal efficiency and then it has a secondary stainless steel heat exchanger to grab some more heat and deal with the resulting consensate with efficiencies just over 90%. It also has a built in mixing control (that also saves you from having to do primary secondary piping) to make sure that the return water is not cool enough to condense in the primary heat exchanger.

DaveGateway

I guess the Rev II

might not condense at some return water temps so the flue temps might melt a PVC flue? Hmmm. I assume the list price is higher then the orig. Rev. also? So how is this better then a Dunkrik Quantum that can PVC vent and probably costs less?