By Charles from Colchester, VT on October 22, 2013
I have a heater similar to this. Can the thermostat be changed to an electric?
By Collin C. - NFI Master Hearth Professional on October 22, 2013
Answer:Unfortunately, no. Hydraulic thermostat controls are a system that are integral to the design of the gas valve. The entire valve would have to be swapped with a millivolt version, which would also warrant the conversion of several other components. I apologize that a separate thermostat cannot be used.
By Lisa from Lake Pleasant, NY on September 18, 2014
How many square feet does this heat and is it efficient? What is the efficiency rating? We are looking for something to heat a 14 x 70 mobile home.
By eFireplaceStore on September 18, 2014
This unit is fairly efficient for a natural vent heater and is rated to heat approximately 700 square feet. However, that will not be sufficient for the size of your home. I recommend using the Empire RH50CB Closed Front Gas Room Heater with Blower - Propane
. This model will not only heat the entire area, but includes a blower to initiate circulation.
By Harry from Portola,CA. on August 30, 2013
How do I light this?
By Tyler M. - NFI Certified Specialist on September 3, 2013
Lighting this gas heater is simple due to its piezo ignitor, which allows you to light the pilot without a match. Please see page 9 of the owner's manual
for the full lighting instructions.
By Bob from WI on March 31, 2014
If venting horizontally through wall how long must the vertical run be to end the venting?
By Collin C. - NFI Master Hearth Professional on April 1, 2014
Answer:The vent piping must conform to the 10/3/2 rule for this appliance. As such, the piping must extend 3 feet beyond the eave of the roof line. It must also have a 10 foot circle around the pipe termination of no obstruction, such as trees or another portion of the roof. If there is an obstruction, the pipe must be raised until a 10 foot circle of clearance can be achieved. You must then add 2 additional feet before terminating the vent.
By Bob from Cook, MN on August 1, 2013
According to the owners manual the flame on the pilot light should be 1/4 inch. It's at least 1 1/2 inches long. Is there a way to adjust the pilot light flame?
By Collin C. - NFI Master Hearth Professional on August 1, 2013
Answer:To adjust the pilot flame length, there is a brass screw that must be turned using a flat head screwdriver. The brass screw can be located immediately to the side of the main control knob used to light the pilot.
Please keep in mind that the pilot flame must extend past the thermocouple 1/4". The thermocouple is positioned away from the pilot hood, so the flame will be longer overall.
By Bill from Piggott, Ar on January 4, 2013
I have a Empire #RH-35-6 LP I was wondering if there was a conversion kit to make it ready for natural gas. And what does it consist of?
By Collin C. - NFI Master Hearth Professional on January 8, 2013
Answer:After checking with the manufacturer, I have found that there is a conversion kit for this unit. It consists of replacement pilot and main burner orifices, as well as a different air adjustment shutter and vent. The item is a special order and would take approximately 10 business days to ship.
By Ronald from Evanston, WY on December 29, 2015
I am replacing a very old propane heater and am about to order this Empire RH35 LP for my workshop, I live at 6500 foot elevation, is it necessary to change anything for my elevation?
By Will M. on December 29, 2015
Answer:This unit is indeed safe for use at your elevation. However, gas pressure adjustments and air shutter adjustments must be made to allow proper operation. The owner's manual contains a chart that will have this information and the correct adjustments that need to be made for the respective elevation.
By Harry from Portola,CA. on September 3, 2013
Where can I find the owner's manual for this unit?
By Tyler M. - NFI Certified Specialist on September 4, 2013
By Fran from MD on October 28, 2014
Can the Empire RH-25 or 35 heater function during a power outage? If I am using propane, what is the average amount needed to operate for a full winter season of 4 to 5 months in the Northeast U.S.?
By Kevin E. on October 28, 2014
Answer:This unit only requires electricity when the blower is used. If the blower is not installed, then electricity will never be needed. This unit is capable of producing 35,000 BTU of heat per hour. At this high heat setting, the unit will consume approximately 1.6 pounds of propane per hour. Total seasonal consumption would be solely dependent on personal comfort levels.
By Tracey from East Glacier Park, MT on January 4, 2016
I've had the Empire RH-35-7 model for about 5 days. It keeps my small home (610 square feet) pretty comfortable in a Montana climate. My only issue is a loud "boom" which it produces from time to time. What is this and can it be eliminated? Also, the aroma from the initial smoking of the unit seems to linger despite airing out my home. How long should that last?
By Will M. on January 5, 2016
Answer:It is important to know what the sound you are hearing actually is. As this is a new appliance, the noise you are hearing in addition to the smoke the appliance is producing could simply be part of the initial "break in" that the gas appliance will go through. Bonding agents, lubricants and sealants will smoke and this should dissipate after no more than 12 hours (typically only 5-7 hours) with the appliance on it's highest setting and a window cracked. Also, metal will expand and contract, creating the loud popping sound you are hearing.
If this pop is heard from the main burner, this could be more serious and could be the result of a defective burner. In any case, you should contact your installer with these issues to eliminate any concerns you may have and for any potential warranty issue.
By Phil from Castle Rock, WA on May 28, 2013
I would like to vent through wall. I have 3 foot horizontal through dead air space than out wall. Can I do an angled up and put a wall weather cap on outside?
By Collin C. - NFI Master Hearth Professional on May 29, 2013
Answer:The RH35 can indeed be vented horizontally through a wall, however it must be terminated vertically. Horizontal terminations are only permitted with Empire's direct vent heaters.
By Leslie from NY on August 27, 2016
Is this model a direct vent?
By eFireplaceStore on August 29, 2016
By Jesse from Vermont on December 10, 2012
Do you sell a programmable digital thermostat that would work with this unit?
By Tyler M. - Fireplace Specialist on December 10, 2012
Answer:Unfortunately, no. This heater has a built-in hydraulic thermostat.
By Shep from Wausau, WI on March 8, 2015
Will a 100 pound LP gas tank work with this unit? I want to heat a small work shop. Do you see any problems with this if it is properly vented?
By eFireplaceStore on March 9, 2015
Answer:A 100 pound tank will indeed be sufficient to fuel this unit. Properly regulated and vented, the tank should allow approximately 60 hours of continuous operation for this heater.
By Mike from Rutland, VT on March 12, 2013
I have an Empire RH-35-6 propane heating unit. It has started shutting itself down completely and seemingly
without any reason I can discern, including the pilot light.
I'm using it to heat a small greenhouse, so this problem is very inconvenient.
By Collin C. - NFI Master Hearth Professional on March 13, 2013
Answer:If both the burner and pilot flame is shutting down, the issue is most likely attributed to the thermocouple. Thermocouples can fail as early as 2 years and are a commonly replaced component. Before considering replacing the component, I would first check the positioning of the thermocouple to ensure that the upper third of the probe is engulfed in flame when the pilot is burning. The probe can also be cleaned with a piece of fine grit sandpaper. If this does not solve the problem, replacement will be needed.
By Shep from Wausau, WI on February 21, 2015
I have a model RH-35-5 gas room heater. Is is the same model as the RH-35-7? Where can I find a blower for my model?
By eFireplaceStore on February 24, 2015
I have checked into this and the optional blower assembly has remained the same across all versions of the RH-35 heaters. The correct part is the Empire DRB-1 Automatic Blower