Bard 2100-073 - Manual (Page 8)

8
.
9.
X
Locate the add-on heat pump model or models you tentatively selected
(Step 4) in the "Guide." Refer to Table of Contents.
EXAMPLE: 36UHPQA w/A36AQ-A Indoor Coil
BARD HANUFACTURIMG COHPANY
DUAL FUEL ADD-OH HEAT PUMP GUIDE TO BKERGY COST SAVINGS
RBCIOK 5
Utl .
ARI RATED HEATING CAP.; STUB (47 )
BTUH (17 )_J
36UHPQA/A36AO-A .
INDOOR A36AO-A
C()P(I^_L90, BSPF
) 2.2(T
90 HIN.DHR REG IV
Now locate the furnace type by fuel used (Step 2).
EXAMPLE: A fuel oil furnace with AFUE of 78%.
FURNACE nPB FUEL OIL FURiWCF EFFICIENCY 78.00 X AFUE
You now have located the page or pages that will help you determine annual
operating cost. See example—Figure 1.
A. Locate the closest structure loss in Btuh column on left side of
page (step 1).
EXAMPLE: 70,000 Btuh Heat Loss
B. Locate the heating cost per unit at top of page (step 3).
EXAMPLE: $1.40 per gallon fuel oil
C. Now read down the fuel cost column until directly across from the
structure heat loss in Btuh. This will be the theoretical annual
heating cost using only the furnace.
EXAMPLE: 70,000 Btuh heat loss 0 $1.40 per gallon fuel oil,
the annual cost will be $1,912.
D. Next locate the electric cost $/KW under Heat Loss Btuh for
structure (step 3).
EXAMPLE; $.06 KW rate
E. Now once again read down the fuel cost column until directly across
from electric cost $/KW. You now have located the annual heating
cost for the house using an add-on heat pump with the furnace.
EXAMPLE: 70,000 Btuh structure heat loss, with $.06 KW cost and
$1.40 per gallon fuel oil. The annual cost using a
36UHPQA Bard heat pump with the oil furnace would be
$1,613 for an annual savings of $299 ($1,912 minus $1,613),
Now repeat steps 8 through 9 for each type fuel and/or heat pump
selected. This will enable you to select the best combination of
furnace and heat pump to use for a structure.
VT