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Model  ____________________________________

Serial No. __________________________________

Date of Purchase ____________________________

WARRANTY INFORMATION

KEEP THIS WARRANTY

LIMITED WARRANTY

VENT-FREE RESIDENTIAL GAS HEATERS

DESA Heating Products warrants this product to be free from defects in materials and components for four (4) 

years from the date of first purchase, provided that the product has been properly installed, operated and maintained 

in accordance with all applicable instructions. To make a claim under this warranty the Bill of Sale or cancelled 

check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to 

restore this heater to proper operating condition and an allowance for labor when provided by a DESA Authorized 

Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or DESA 

Heating Products who will provide original factory replacement parts. Failure to use original factory replacement 

parts voids this warranty. The heater MUST be installed by a qualified installer in accordance with all local codes 

and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts 

that fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by 

improper installation. Travel, diagnostic cost, labor, transportation and any and all such other costs related to 

repairing a defective heater will be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE 

OF THE PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED 

WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUD-

ING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 

(4) YEARS FROM THE DATE OF FIRST PURCHASE; AND DESA HEATING PRODUCTSʼ LIABILITY IS 

HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA HEATING PRODUCTS 

SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCI-

DENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of 

incidental or consequential damages, so the above limitation on implied warranties or exclusion or limitation on 

damages may not apply to you.
This warranty gives you specific legal rights and you may also have other rights that vary from state to state.
For information about this warranty write:

Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our 

standard written warranty. We make no other warranty, expressed or implied.

2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com

NOT A UPC

107886-01
Rev. J
08/04

107886 01

Summary of Contents for VP20BT

Page 1: ...other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s ph...

Page 2: ...ng plate This appliance is not convert ible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer TABLE OF CONTENTS Safety Information 3 Local Codes 4...

Page 3: ...o high temperatures the appliance should be located out oftraf candawayfromfurniture and draperies Do not place clothing or other ammable material on or near the appliance Never place any objects on t...

Page 4: ...o cal codes In the absence of local codes use the latest edition of National Fuel Gas Code ANSI Z223 1 NFPA 54 Available from American National Standards Institute Inc 1430 Broadway New York NY 10018...

Page 5: ...e air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusual...

Page 6: ...rect vent draws combustion air from the outdoors and vents to the outdoors Example Gas water heater ______________ Btu Hr Vent free heater _____________ Btu Hr Total _____________ Btu Hr 40 000 20 00...

Page 7: ...t air into attic if attic has a thermostat controlled power vent Heated air entering the attic will activate the power vent Figure 3 Ventilation Air from Outdoors Figure 2 Ventilation Air from Inside...

Page 8: ...es of the heater as a replace insert in high traf c areas in windy or drafty areas CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing h...

Page 9: ...Attaching to Wall Stud This method provides the strongest hold Insert mounting screws through mounting bracket and into wall studs Attaching to WallAnchor This method allows you to attach mounting bra...

Page 10: ...r ush to wall 4 For thin walls 1 2 or less insert red key into wall anchor Push red key to pop open anchor wings see Figure 10 IMPORTANT Do not hammer key For thick walls over 1 2 thick or solid walls...

Page 11: ...3 For carpeted oors make a small cut with a sharp knife at marked locations prior to drill ing If mounting base to a wood oor drill 1 8 inch diameter hole 3 4 inch deep Do not use anchors in wood oor...

Page 12: ...in Figure 15 Locate sediment trap where it is within reach for cleaning Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps the...

Page 13: ...by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from gas meter for n...

Page 14: ...de Pilot Burner Thermocouple OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low these instructions exactly a re or explosion may result causing property damage per son...

Page 15: ...lbetween1 and 5 Selecting the 5 setting will cause the burner to remain fully on without modulating down in most cases Note The thermostat sensing bulb measures the temperature of air near the heater...

Page 16: ...e of dust and dirt To clean these parts we recommend using compressed air no greater than 30 PSI Your local computer store hardware store or home center may carry compressed air in a can You can use a...

Page 17: ...25 x 7 24 25 x 25 75 x 7 Carton 26 25 x 21 25 x 9 26 25 x 29 x 9 Weight pounds Heater 20 28 Shipping 25 33 SERVICE HINTS When Gas Pressure Is Too Low pilot will not stay lit burner will have delayed i...

Page 18: ...on 4 Air in gas lines when in stalled 5 Depleted gas supply propane LP gas only 6 ODS pilot is clogged 7 Gas regulator setting is not correct OBSERVED PROBLEM When ignitor button is pressed there is n...

Page 19: ...Burner back ring during combustion Yellow ame during burner combustion Slightsmokeorodorduringinitial operation REMEDY 1 Press in control knob fully 2 AfterODS pilotlights keepcon trol knob pressed in...

Page 20: ...ly propane LP gas only 3 Gas leak See Warning statement above 1 Not enough fresh air is available 2 Low line pressure 3 ODS pilot is partially clogged OBSERVED PROBLEM Heaterproducesawhistlingnoise wh...

Page 21: ...0 When calling DESA Heating Products have ready your name your address model and serial numbers of your heater how heater was malfunctioning type of gas used propane LP or natural gas purchase date Us...

Page 22: ...www desatech com 107886 01J 22 ILLUSTRATED PARTS BREAKDOWN MODELS VN20BT VP20BT VN30BT VP30BT 2 3 5 6 8 9 10 10 11 12 13 14 16 18 19 4 7 1 15 17 20...

Page 23: ...01 Nut M5 2 11 110803 01 110803 02 110803 01 110803 02 ODS Pilot Assembly 1 110186 01 110186 01 110186 01 110186 01 Thermocouple Kit 1 12 103446 01 103446 01 103447 01 103447 01 Burner 1 13 099387 03...

Page 24: ...intenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of...

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