2050 County 41 NW, Backus, Minnesota

Temporary Heat & Construction Heater Rental in Northern Minnesota

Construction heat from Backus, Minnesota

BCI Rentals supplies temporary construction heaters for buildings, winter concrete work and frozen ground across northern Minnesota. Choose indirect heat for ducted air without combustion exhaust in the supply, make-up air for large fresh-air requirements, or hydronic heat for the ground and slab itself.

Tell us what you need to heat, the size of the space and the fuel and power on site. We will help you choose the equipment and check availability for your job.

Start with the job

A heater's BTU rating is only part of the decision. The air you need to replace, where exhaust goes and whether you are warming a building or thawing soil determine the right system.

Which temporary heater fits your project?
Your jobStart withWhy it fits
Warm an enclosed building or finish-work areaIndirect fired heaterA heat exchanger separates combustion exhaust from the heated air.
Replace exhausted air while heating a large spaceMake-up air heaterSupplies high volumes of heated outdoor air.
Thaw frozen ground before excavationHydronic ground heaterHeated glycol circulates through hoses under insulated blankets.
Protect and warm concrete during winter curingHydronic heat and curing blanketsApplies controlled heat at the surface, following the project's curing plan.
Heat an open or well-ventilated work areaDirect fired forced air heaterCompact high-output heat where the required ventilation can be maintained.

Working out the difference? Read our direct vs. indirect fired heater comparison before you choose.

Construction heater rental options

Indirect fired air heat

Keep the heater and combustion exhaust outside and bring heated air into the work area through ducting. BCI's catalog includes 200K through 1M BTU size classes, with diesel and propane or natural gas options for building shells, workshops and finish work.

Compare indirect heater sizes

Direct fired make-up air

Make-up air units heat 100% outdoor air to replace air leaving a building through exhaust or planned openings. Our 1.5M and 2.5M BTU listings cover large airflow needs; ask about the 550K option and match the system to the site's ventilation plan.

Compare make-up air heaters

Hydronic ground heat

For footings, utility repairs and slabs, warm the surface directly with glycol-filled hoses and insulated blankets. Wacker Neuson units in BCI's catalog cover ground-thaw areas up to 2,500, 6,000 or 10,000 square feet, depending on the setup and conditions.

Plan ground thaw and concrete heat

Portable direct fired heat

The HeatStar 250K to 400K BTU LP/NG heater is an option for open or adequately ventilated construction work. Direct fired units put combustion products and water vapor in the heated airstream, so ventilation and the manufacturer's use requirements are part of the choice.

View the direct fired heater

What size heater do you need?

Start with the building's length, width and ceiling height, then the outdoor temperature and the temperature the work needs. A tall uninsulated shell with overhead doors opening all day needs a different plan from a sealed shop of the same floor area.

  • Enclosure: finished insulation, temporary sheeting, open doors and wind exposure affect heat loss.
  • Airflow: exhaust systems and fresh-air needs can drive heater size as much as square footage.
  • Utilities: confirm diesel, propane or natural gas availability and the actual voltage, phase and circuit capacity.
  • Work requirements: concrete, coatings, drywall and occupied work areas can need different temperature, moisture and ventilation conditions.

Call to size your job. Catalog size classes help compare equipment, but they are not a promise of a particular heated floor area or a substitute for the job's heat-loss and ventilation requirements.

Move the heat and manage moisture

Warm air can collect above the work zone in tall buildings. Schaefer floor and ceiling-hung fans help circulate it through the space, reducing hot and cold pockets when positioned for the job. Ceiling-hung units need a suitable mounting location and secure installation.

Heat helps finishes dry, but moisture still needs a way out. Direct fired heaters, including make-up air heaters, add combustion moisture. A planned fresh-air and exhaust balance or a commercial dehumidifier can support drying, depending on the building, outside conditions and materials involved.

Northern Minnesota projects, one local call

BCI Rentals is based at 2050 County 41 NW in Backus. We work with contractors and property owners across the Brainerd Lakes area and north-central Minnesota. Call with the jobsite location to discuss equipment availability and delivery and pickup options.

Brainerd and Baxter Bemidji Walker Park Rapids Grand Rapids

Temporary heat rental questions

Do you rent propane and natural gas construction heaters?

Yes. BCI's catalog includes LP/NG direct fired, indirect fired and make-up air heaters. The best option depends on the ventilation plan, heat requirement, fuel supply and electrical service. Call to confirm the equipment and connections for your site.

Can an indirect heater thaw the ground?

An indirect heater warms air. A hydronic ground heater is usually the more focused choice for frozen soil because its hoses apply heat directly to the surface under blankets. See the ground heater guide for sizing and timing considerations.

Which heater is best for drywall and paint?

Indirect heat avoids adding combustion moisture to the supply air and is a useful starting point for enclosed finish work. The full plan still needs temperature control, airflow and a way to remove moisture. Follow each material manufacturer's drying requirements.

How much does a temporary heater rental cost?

Call (218) 947-3353 for a rate and availability. Have the job location, dates, space dimensions and available fuel and power ready so the quote matches your project.

Get the right heat for your site

Call (218) 947-3353 for a rate and availability. We can help match heaters, ducting, blankets and air movement to the work ahead.