Question about Rinnai Toyostove Direct Vent Heater: Toyostove Laser 73 Shipping

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Laser 72 when burning on high i can smell fuel and it smells up the whole house. while running and what to do about the smell while the fan is on and working fine.

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Re: laser 72

I had this problem. I discovered spilled fuel had accumulated in the back of the heater along the bottom of the wall. A pain to clean up because you have to take the top and sides off, then you can be sly and just remove the screws at the bottom of the back wall, and maybe one or two screws up the back middle so you can pull the wall away from the bottom edge and clean up the silled fuel.

I was pretty tiffed to find this because it happened when it was serviced. Grrrr.


Posted on Jan 26, 2008

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Re: laser 72

Check the tank open/ if you fume detector you may detect it sometime some leak within distrbution hose clamp expanded hoses can be cause of leak.

Posted on Jan 08, 2008

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Propane smell with pilot on and burner ring/thermostat off. Pilot off no smell. Pilot light is good, burner ring burns cleanly. Logs correctly placed. No line leaks. Failed shutoff valve how to fix?

This is a major hazard, you need to take pictures of the whole thing and then disassemble the whole thing and use ptfe sealant and reassemble the whole thing. Unless you want to get a sniffer to locate the issue, If could also be the pilot pressure is too high and the pilot is not burning all the gas. You may want to call a pro due to explosion risk.

Jan 10, 2016 | Heaters

4 Answers

Laser 72

Your manufacturer, Toyotomiusa, recommends that you tighten all the joints on the fuel line. Your owner's manual CLICK HERE contains detailed drawings showing the location of all parts, including the fuel injector. Your unit will need to be serviced by a qualified technician if you have tightened the connectors and still smell kerosene or find wet spots under your heater. It should not leak or smell of kerosene. If you're smelling kerosene, you should not operate the unit, because the leak may cause a fire.

Jan 15, 2008 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

New lenomex has a horrible chemical smell - I sprayed waterproof on a jacket and am assume it has picked up fumes. How can I get rid of the smell. it is past its return date and need a fix, please

The heater will burn the fumes off , how long it will take I don't know.,can you put it out side and let it run till the smell goes, never spray any thing on the heater elements you could have a fire.

Jan 05, 2016 | Heaters

1 Answer

Propane turbo heater. After awhile why does it start to burn eyes and nose?

Hi Eric

It sounds like the heater is getting the air in the room so warm that it's making your eyes and nose hurt. That can be from dryness, from heat, or from combustion products.
Depending on the partucular model, you can try to:
  1. Turn the set temperature down.
  2. Turn the turbo fan to a lower setting.
  3. Turn the feed valve from your propane tank to a slower feed. At some point, you should be able to throttle the amount of fuel burning in a period of time to where the heat is more bearable.
  4. If you're smelling fuel, or overt burning petroleum smells, turn the unit off. This is a sign that things aren't burning right.
Last, but probably most important. If you are running a unit like this inside, make sure you have windows open. Please take me seriously here - installed propane furnaces have heat exchangers to pull in fresh air, heat it, and pass that air into your house. A propane heater burning inside your house is burning your inside oxygen and, depending on the flame quality, dumping Carbon Dioxide or, worse, Carbon Monoxide, into your house. You can end up dead pretty quickly, especially from Carbon Monoxide poisoning, and you'll likely be feeling fine right up to the time you pass out. These types of heaters are meant more for outside use, so please, if you absolutely feel you must run it inside, keep windows open and have a fan running. You're playing with your health

Good Luck!

Nov 24, 2015 | Heaters

1 Answer

Bought kerosene heater in middle of November and seem to have a wick issue. It will not burn properly and makes me wonder if wick was place in upside down. Can I fix it myself?

Trust me you can not install a wick upside down, the bottom of a wick is like an old mop. It has loose wove string and knots, it's job is to **** up fuel. Things to remember about wicks are, they need cleaned some times, I use an old tooth brush and gently brush the wick with it set down low so it does not get damaged. A wick must also sit and soak for at least a half hour before attempting to light it. A good practice to get in to is about every fourth tank of fuel let the heater burn out, this also cleans out the wick and burns off all of the impurities from dirty fuel. Yes you can check your wick but the entire heater does have to be tore down and you should do it only with an empty tank of fuel. This takes time , patience, and a little mechanical know how. When burning out a heater please remove it from your house and let it burn the smell is terrible, if you do this in your house it will smell like a semi truck is running in it.

Dec 28, 2010 | Heaters

2 Answers

My Laser 72 will run a full cycle, seems to be warming, shuts off after a cycle (fan comes on, etc.) then reset button shows red. Have changed filter outside, have blown lines out, have cleaned filter on...

You may have something as simple as a blocked fuel nozzle. Take a paper clip and stick about 2 inches of it down the fuel nozzle into the burner. This will clear any carbon on the tip. While you are at it remove the flame sensor. That's the white wire going into the burner. Wipe it off and install it pointing down. This could got you going. Bottom line however, the heater is so old Toyo is no longer supporting it. No electrical parts as well as some other stuff. It's time to up grade.

Good luck,

Tom Hawkins

Feb 15, 2010 | Rinnai Toyostove Direct Vent Heater:...

2 Answers

Laser 72 is overheating. Top gets too hot to

Check the fan cage on the back, it should be cleaned to allow for adequate air flow. Be sure curtains are not getting pulled up to the fan cage.
This could also be due to a crack in the pot, or if you put too much fuel treatment in your fuel. Regardless of what is causing the overheat situation, an L 72 is a very old unit. You may not want to invest a great deal of money into repairing this unit. The manufacturer has discontinued several parts for the L 72 such as the main circuit board and the burner rings. Without these parts, you are out a heater.
If you can clean the fan cage and remedy the problem, that would be great. If it is a cracked pot, and you decide to replace, be sure that you know how long it has been since you replaced the ring. A ring in a Laser lasts about 7 years. If your technician does not have rings in stock, you could be out of luck when your unit needs a ring.
Be sure to plug the unit into a dedicated outlet and use a quality surge protector with at least 450 Joules to help protect the board. Hope this was of some help. If you have any further questions, visit We do have inventory of these discontinued parts for Laser heaters if you decide to repair and your technician cannot get the needed parts.

Jan 26, 2010 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

My toyostove is making the room stinks(burned dieseal ) smell. What is causing this?

Something to check would be the exhaust vent for leaking. We just replaced our old Monitor 40 because it was making some terrible exhaust smells in our house and it turned out their was a crack on the exhaust line just where it enters the stove. May be worth looking into. They are a lot cheaper than a whole unit!

Nov 30, 2009 | Rinnai Toyostove Direct Vent Heater: Laser...

1 Answer

Fuel Oil Smell in House

With any internal combustion devise it needs oxygen to combust the fuel, I suspect that your house is sealed shut to keep out the cold.  I suggest that you raise a window slightly so as to cause a draft for the heater. Be sure that the raised window is not between people and the heater because the cold air will pass over them and they will get very chilled.
This is the same fix for smoking fireplaces.

Jan 29, 2009 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

Toyo laser 30 smokes and smell like unburned fuel when it ignites

If you just changed gaskets on your heater it is normal for it smoke a little bit when you first restart it. It should go away after a while though. If you smell unburned fuel you have a leak somewhere, or a spill. Check all your fuel line connections in the house. The back of the heater where the line connects, the firestop valve (the valve behind the pump that opens or closes the flow of fuel), and any connections in there behind the pump/fuel resevior. (sp) Check that they are tight. What has also happened to me is fuel has spilt and ended up along the back edge of the stove. you might be able to be crafty and unscrew all the screws at the bottom, to try to clean that up. It doesn't take much of a spill to create a very pungeant diesel smell.

Dec 03, 2008 | Rinnai Toyostove Direct Vent Heater:...

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