I have a ventless gas heater. the pilot lights

It needs 14'' wc to work , hose could be too small for load .

Your thermo-couple is bad. It`s the rod the pilot light hits with a very small copper tube that goes to the gas valve. You can pick one of these up at your local hardware store for about 15 bucks and they are easy to change.

my vanguard ventless gas space heater making a toxic smell

I have had a Charmglow for about five years and was doing the same thing. I called a plumber that worked with gas fireplaces and he came out, clean the pilot light and now it works great. Cost was $99.00

Hi clean out tiles with air line clean pilot / if still goes out check thermocouple

Ventless Gas logs, Vanguard, VS30PR. Propane gas
Pilot light stays lit various times, sometimes for several days then other times for a few minutes. Lights best when temp outside is below freezing. Pilot flame appears to receive too much air. How do you adjust the pilot flame? Is this done using two screws marked A & E? Do you have suggestions?
Thanks,
Ed

the pilot light always stays on, its designed to allow your heater to turn on by itself without you needing to light a match every time. if the pilot light is burning you have nothing to worry about. its when the pilot light goes out that a small amount of gas leaks into the room. and by small i mean smaller than a hand held lighter... if you still want to shut the entire thing down you could turn off the gas line feeding the heater or possibly the whole house, otherwise the pilot light will stay on. as far as the actual heater turning off, thats probably controlled by some sort of thermostat somewhere. if you set the temp to very cold it should stay off. if that doesn't work then you may need a new thermostat.

Hi no thermocoples are made to be exchanged never come across that in 30 years of gas fitting

I have a Rinnai Ventless heater hooked up to a 20 lb propane cly with a Moble home type regulator in line, and when I light it the pilot light lights and stays on. When I turn it to the heat position the pilot light go's out and that it!