Replacement Boiler

[Anatol]

Fellow Inspectors,

I am looking for some advice regarding the replacement of my antique boiler. Home is middle group brick and block town home. 1300 Sf not including finished basement. In wall convectors. I did the heat loss calculation and came up with 16,785 BTU/hr loss. The old oil fired boiler unit had enough waste heat to warm the basement, I may have to add a heat source there to make up for that.

I am planning on installing a gas fired 90%+ condensing boiler. Several I have seen while inspecting had variable input from 30-90K BTUs depending on need.

Does anyone have any thoughts of the best quality brand, heat exchanger metal, best warranty or other factors. All advice is welcome...

Anatol

[hausdok]

Your home is small enough that a hi efficiency tankless water heater married to a small plate exchanger and a couple of circulators might work; however, for what you'll pay for a 90+ condensing water heater plus the mods you'll need to marry it to that system, I think it would make more sense to look at one of the new compact wall-hung condensing boilers that are designed for hydronic systems.

ONE TEAM - ONE FIGHT!!!

Mike

[Anatol]

I am looking at the wall mounted units. I was hoping that someone had some experience with them. I have only seen the Crown and Buderus models in the real world, but I know there are more out there...

Anatol

[hausdok]

Hi,

Meant to do this last week; even put it on a to-do list - then promptly forgot it. Anyway....

Laars Mascot II - http://www.laars.com/MascotII.aspx

Smith GC 160 Condensing Boiler - http://www.smithboiler.com/html/gc160-c ... boiler.asp

Heat Transfer Products - Phoenix Evolution - http://www.htproducts.com/versa-series.html

Navien Combi Condensing Boiler - http://www.navienamerica.com/product/co ... n=combi_01

ONE TEAM - ONE FIGHT!!!

Mike

[Anatol]

Thanks, I'll check them out.

Anatol

[central55]

hello!

Thanks for share it. you can more detail of boiler replacement, check out: (link removed)