Specifications - HearthStone Waitsfield DX 8770 Owner's Manual

Hearthstone Quality Home Heating Products, Inc
Testing Agency: Intertek Testing Services NA, Inc.
(ITS)
Listed: Direct Vent Gas Heater
Model: Waitsfield Model 8770
Tested to: ANSI Z21.88b – 2014/CSA 2.33b - 2014
Certified for Canada, CSA P.4.1
Approved for Mobile Home Installation
Specification
Input rating (Btu/hr) 0-2000 ft
Input rating (Btu/hr) 2000-4500 ft
Orifice size DMS 0-2000 ft
Orifice size DMS 2000-4500 ft
Man. press.-LO setting (in.w.c./kPa)
Man. press.-HI setting (in.w.c./kPa)
Minimum Inlet press.(in.w.c./kPa)
Minimum input rating (Btu/hr)
*Valve outlet pressure increased to 4.7 in.w.c.
***Pressure measured with only front burner engaged.

Specifications

Certified for use by:
Board of State Examiners of Plumbers and Gasfitters
100 Cambridge Street, Room 1511
Boston, Massachusetts 02202
Manufactured and Warranted by:
Hearthstone Quality Home Heating Products, Inc.
317 Stafford Ave.
Morrisville, VT 05661-8695, USA
www.hearthstonestoves.com
Waitsfield DX Dimensions
** Valve outlet pressure increased to 12.6 in.w.c.
****Pressure measured with both burners engaged.
NG LP
37,000 37,000
37,000* 37,000**
45/45 53(f)/57(r)
45/45 53(f)/57(r)
2.7/0.67 10.7/2.67***
3.4/0.87 10.4/2.59*****
5.0/1.25 12.0/2.99
18,000 16,000
WAITSFIELD Model 8770
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