Best Propane Garage Heaters

Last updated: November 2, 2026

Vented unit heaters that run on propane, for garages and shops with no natural gas line.

Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Best Propane Garage Heaters: Gas

  1. Mr. Heater Big Maxx MHU80
    #1 of 133.6Full review

    A good value gas heater for a big garage or a small shop. Add a thermostat and the vent kit to the budget.

    Amazon $545.19
    $545.19
    64,000 BTU/h2,667 sq ftNo
  2. Mr. Heater Big Maxx MHU125
    #2 of 133.6Full review

    One of the two biggest heaters here at a fair price, for a large shop or pole barn.

    Amazon $934.23
    $934.23
    100,000 BTU/h4,167 sq ftNo
  3. Mr. Heater Big Maxx MHU50
    #3 of 133.4Full review

    The low cost way into vented gas heat for a two car garage. Budget for a thermostat and venting kit.

    Amazon $452.79
    $452.79
    40,000 BTU/h1,667 sq ftNo
  4. Reznor UDXC 75
    #4 of 133.1Full review

    The value pick of the Reznor line for a three or four car garage, with a 5 year parts warranty.

    Amazon $1,520
    $1,520
    62,250 BTU/h-No
  5. Reznor UDXC 60
    #5 of 133.0Full review

    A three car garage heater with Reznor’s long warranty, ready for propane out of the box.

    Amazon $1,504
    $1,504
    49,800 BTU/h-No
  6. Modine Hot Dawg HD125
    #6 of 132.9Full review

    A large shop heater from a commercial maker. The Mr. Heater Big Maxx 125 gives similar heat for less.

    Amazon $1,552
    $1,552
    102,500 BTU/h-No
  7. Reznor UDXC 45
    #7 of 132.9Full review

    A two car garage heater for buyers who value the longest parts warranty here.

    Amazon $1,389
    $1,389
    37,350 BTU/h-No
  8. Modine Hot Dawg HD75
    #8 of 132.7Full review

    A large garage heater from Modine. Reznor’s UDXC 75 costs about the same with a longer parts warranty.

    Amazon $1,371
    $1,371
    62,250 BTU/h-No
  9. Modine Hot Dawg HD60
    #9 of 132.6Full review

    A three car garage heater from a commercial maker, for buyers who want Modine’s dealer support.

    Amazon $1,324 HVACDirect $1,204
    $1,204
    49,800 BTU/h-No
  10. Modine Hot Dawg HD45
    #10 of 132.5Full review

    A proven two car garage heater from a commercial heating maker. Cheaper options give similar heat.

    Amazon $963
    $963
    37,350 BTU/h-No
  11. Modine Hot Dawg HDS45
    #11 of 132.3Full review

    The two car garage heater for a shop with sawdust or fumes in the air, where the burner should not use indoor air.

    Amazon $1,670.35 HVACDirect $1,327.80
    $1,327.80
    37,350 BTU/h-No
  12. Modine Hot Dawg HD30
    #12 of 132.2Full review

    Vented gas heat for a one car garage from a long running commercial heater maker. You pay a lot per BTU at this size.

    Amazon $998.99
    $998.99
    24,900 BTU/h-No
  13. Modine Hot Dawg HDS30
    #13 of 132.2Full review

    A sealed combustion heater for a small woodshop or a garage with fumes or dust in the air. Pay the premium only if you need that.

    Amazon $1,199.99
    $1,199.99
    24,900 BTU/h-No