Boiler Sizing Replacement Guide

8
SAMPLE PROBLEM
STEP 1: COMPLETE A JOB SURVEY FORM
A properly completed Job Survey Form is shown
in Figure 4. The Key Information:
• Two story house with unheated basement-816
sq. ft. of floor space each level.
• Construction: 4” brick and 4” light weight
block, furred, lath and plaster; 3” ceiling
insulation; double glass, weatherstripped.
• 80°F design temperature dierence.
• Type of System: series loop.
• Type of Radiation: convector baseboard.
• Owner wants to replace his old boiler with
a new high eciency gas fired water boiler.
Owner wants night set-back thermostat.
FIGURE 4: JOB SURVEY FORM
BOILER REPLACEMENT WORKSHEET
JOB SURVEY FORM
CUSTOMER NAME: PHONE:
ADDRESS:
PREPARED BY: DATE:
PRESENT HEATING SYSTEM:
TYPE OF RADIATION:
HEATING MEDIUM: ¨ Hot Water ¨ Steam
FUEL NOW USED: ¨ Natural Gas ¨ Propane ¨ #2 Oil ¨ Electricity
FUEL TO BE USED: ¨ Natural Gas ¨ Propane ¨ #2 Oil ¨ Electricity
IS SYSTEM HEATING SATISFACTORILY? ¨ Yes ¨ No
If no, what is the problem?
How can it be corrected?
RELOCATE BOILER? ¨ Yes ¨ No If yes estimate time Materials
Corrosive Atmosphere?
PRESENT SOURCE OF DOMESTIC WATER: ¨ Tankless Heater ¨ Indirect Tank ¨ Other
WILL NEW BOILER HAVE A WATER HEATER? ¨ Yes ¨ No Type
HOUSE CONSTRUCTION:
GLASS:
WALLS:
CEILING:
SLAB:
HOUSE DIMENSIONS (Use sketch for accuracy):
High Altitude Ft. Elevation
Basement ‘ H x ‘ L x ‘ W = Sq. Ft.
First Floor ‘ H x ‘ L x ‘ W = Sq. Ft.
Second Floor ‘ H x ‘ L x ‘ W = Sq. Ft.
DESIGN TEMPERATURE DIFFERENCE °F
NEW THERMOSTAT(S) REQUIRED ¨ Standard ¨ Programmable
C.L. Jones
18075 Ski Run Drive, Monroe
RKT
no
8
80
34 24 816
8 34 24 816
8 34 24 816
Series loop
Separate
Convector BSBD
double glass, weatherstripped
4" brick, 4" block — furred, lath & plaster
3" insulation
wood over bsmt.
327-9489
2/15
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