[Greenbuilding] Gas furnace

[George J. Nesbitt]

1. Load calculation, Manual J, accurate to house as built, insulation, 
windows, area and R/U-values/SHGC, blower door test, tight ducts selected
2. Manual D duct design to check if ducts are adequate.
3. Manual T grill/register design.
4. undersize unit some from design load
5. ACCA Quality Installation checklist
6. Tight ducts <6% design airflow.

Check to see if there are any Home Performance contractors in the area. 
www.energystar.gov, www.bpi.org
Have a HERS Rating done on the house www.natresnet.org

In a gas furnace I like the Bryant (also Carrier brand) 96.6% AFUE 2 
heating stage ECM variable speed fan, or equivalent by other manufactures.



John E. Benson wrote:
> Despite all the enviro alternatives, I know, I have a friend (who ain't
> carin' about the enviro too much) who needs a new furnace ASAP.  It's
> still cold up here in Michigan.
>
> Does anyone have some recommendations for gas furnaces.
>
> I see Amana (AMV9 Gas Furnace) and Bryant (Plus 90i and Plus 95i) carry
> some decent ones.
>
> Any sugguestions would be great.....
>
> QUINN EVANS | ARCHITECTS
>
> John E. Beeson, LEED AP
>
> 219 1/2 N. Main Street
> Ann Arbor, MI  48104
> jbeeson at quinnevans.com
> www.quinnevans.com
> v 734 663 5888
> f 734 663 5044
>
> "I'd put my money on the sun and solar energy. What a source of power! I
> hope we don't have to wait till oil and coal run out before we tackle
> that."
> ~~Thomas Edison, 1931
>
>   
>> "Buildings are rarely built to use energy efficiently, despite the
>>     
> sizeable costs that inefficient designs impose on building owners,
> occupants, and the utility companies that serve them. The reasons for
> this massive market failure have to do with the institutional framework
> within which buildings are financed, designed, constructed, and
> operated: many of the roughly two dozen actors who play a role in this
> process have perverse incentives that reward inefficient practice.
> Fragmented and commoditized design, false price signals, and
> substitution of obsolete rules-of-thumb for true engineering
> optimization have yielded buildings that cost more to build, are less
> comfortable, and use more energy than they should."  
>   
>> - Amory Lovins
>>     
> P Before printing, think about the ENVIRONMENT
>
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