20 Most Recent Reddy Heater-30-55,000 BTU Variable Questions & Answers


check lines for blockage

Reddy... | Answered on Mar 04, 2018


clean burn tube and holes in ring check gas pressure and heat setting or bad control board

Reddy... | Answered on Mar 04, 2018


Absolutely K1 or diesel can get old in a hurry, the ultra-low Sulphur diesel has been tinkered with so much that it turns to book varnish much faster than before 2010. Most of those heaters spray fuel past the igniters using a siphon much like a spray paint gun, the suction tube may have dry rot or a small air leak and it it takes but a tiny air leak to kill the siphon effect. Check the tube from the nozzle all the way down to the fuel tank or replace it if you're not certain it is not compromised or dry rotted.

Reddy... | Answered on Oct 12, 2017


There is an igniter module and then the igniter electrodes (check the air gap) that produces the spark to start the fuel burning, both could be defective.

Reddy... | Answered on May 19, 2017


Change out the thermocouple.

Reddy... | Answered on Mar 18, 2016


no it doesn't - the ignitor goes to printed circuit connectors on your control board. the ignitor operates on 120 volts ac. for repair parts on any reddy heater go to www dot desatech dot com

Reddy... | Answered on May 12, 2015


With any unvented gas heater, you still need fresh air coming in to breath. Long exposure in a closed room with these type heaters will cause headaches, nausea, light headedness, etc. If you think something may be wrong with the heater, check the inside of the heater where the flames are. Is it sooted? If it is, it is not burning correctly and may need the pressure adjusted or cleaned. Is the cylinder you are using freezing up on the outside of the bottle? You may just need to switch to a full cylinder. Hope this helps.

Reddy... | Answered on Mar 29, 2015


  1. The FIRST STEP in diagnosing any heater problem should be checking the output of the air pump. Determine the air pressure required for the heater model that is being tuned. The air pump, in turn, is responsible for fuel delivery.
  2. If you do not know the required pressure look for a decal on the side (usually) of your heater. This decal will state the model number, serial number, fuel capacity, pump pressure, etc.
  3. If your plastic end cover looks like this......
m29609t.jpgM29609 has 2 threaded holes. The hole on the left has a square plug inserted. Remove the plug. Screw in the nipple end of the gauge into the threaded hole. Check for air leaks with soapy water.
or
If your plastic end cover looks like this......
m16545t.jpgM16545 has 2 threaded holes. The shorter projection with a hole on the left has a square plug inserted. Remove the plug. Screw in the nipple end of the gauge into the threaded hole. Check for air leaks with soapy water.
4. The other hole (longer projection) has a screw with a hole which adjusts a ball and spring relief valve assembly. Carefully adjust the screw until the gauge is reading the pressure level that is specified on the heater's label. If operating properly, the pump should produce more pressure than is required to operate the heater. The relief valve allows the excess air to escape before being sent to the nozzle.
5. Replace plug. Test for leak.
6. If you are unable to reach the desired pressure spray soapy water around the seal of the end cover- at the same time check the plastic cover for a crack. A cracked end cover will not allow the heater to perform properly and will not allow for an accurate reading. The pump must be set at the specified pressure in order to have adequate fuel delivery an adequate fuel atomization. Replace if needed.
7. If you set the pressure to specs and the heater does not perform properly or the cone does not glow a soft red, then check for other fuel delivery problems such as a clogged fuel filter, cracked rubber hose, clogged or worn nozzle, or a cracked nozzle adapter. Soapy water lightly sprayed in these areas will quickly identify the problem most of the time. Any air leak will create problems.

Reddy... | Answered on Mar 04, 2015


Either the fan blade is loose or the mount is loose, or the outside of the heater has been damaged/dented and hitting the blade. Leaving the top piece off is only an option if there are no pets or children around.

Reddy... | Answered on Mar 01, 2015


Either the fan blade is loose or the mount is loose, or the outside of the heater has been damaged/dented and hitting the blade.

Reddy... | Answered on Mar 01, 2015


You can download the manual from here: http://www.desatech.com/manuals/Construction%20Heaters/113893-01.pdf

Reddy... | Answered on Feb 24, 2015


Technology has come a long way. but these heaters don't connect to wi-fi

Reddy... | Answered on Feb 24, 2015


What size tank? when it's really cold a small tank will not produce enough vapor fast enough. It could be a weak valve in the tank snap'n shut If the fuel comes out to fast. Could also be high temp switch on back of burner going bad. That happens alot.

Reddy... | Answered on Feb 24, 2015

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