Restroom Calculator

Need an estimate for how many porta potties your event needs? Use this handy calculator! For a more specific quote tailored to your needs, call us today at 800-210-8407!

special events calculator

Portable Heat Calculator

Need an estimate for how many BTU's you'll need to heat up your space? Use this handy calculator! For a more specific quote tailored to your needs, call us today at 800-210-8407!

Heating Calculator
*Please press the "tab" key on your keyboard or click out of the field after entering all fields to ensure the calculation is correct.


Portable Heaters For Construction

Direct Fired, Indirect Fired, Enclosed Flame, Convection, Electric Heaters

Direct Fired Heaters

On Site Companies heat branch offers a full range of direct fired portable heaters available for rent. These heaters are perfect for temporary use at locations where you need to leave heating units unattended for periods of time. On Site Companies inventory can provide your commercial job site with heating solutions that will improve working conditions and work quality. Through pressurized methods, direct fired heaters will rapidly heat large spaces and forces moisture and contaminates outside. No other system can match this type of heater for ease of use and cost effectiveness. These heaters are perfect for use on your construction site or commercial area.All burn 100% outside air.

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Indirect Fired Heaters

Indirect Fired Heaters from On Site Companies are perfect for providing clean burning heat to your construction job site. These dual fuel heaters will provide you with comfortable portable, temp heat that is environmentally friendly and portable. Indirect Fired Heaters are an enclosed flame heat alternative that work by venting harmful combustion by-products outside, while also eliminating harmful contaminants and moisture from the air.

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Direct Fired Enclosed Flame Heaters

On Site Companies offers a line of direct fired enclosed flame heaters that are perfect for use at your construction site, home or special event. These temp heating units are portable, quiet and are easily moved from one area to another. With remote thermostats and On Site Companies Security Options, you can monitor the equipment usage and temperature control. These units can also be used to duct into tents for weddings and special events.

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Electric Heaters

On Site Companies provides a range of electric heating solutions available for rent that can fit a range of needs. These electric space heaters are designed to be used in small spaces where non-combustible heat sources are required. On Site Companies electric heaters allow you to provide heat to your building, without having to vent out fumes. This equipment is clean, quiet, compact and does not add any relative humidity to the space that they are located in. This allows you to heat any area in a safe and efficient manner.

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Convection Heaters

On Site Companies has a line of convection heaters available to rent that can fit the temporary heating needs of your job site or home. Convection heaters are perfect for use when you need temporary heating, but you do not have electricity or natural gas available for a fuel source. Convection heaters instead use vapor propane to produce direct fired heat.

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Our phone system will temporarily be shut down for maintenance on Saturday, July 24. For emergency assistance during this time, please call your branch’s corresponding after hours phone number directly. See onsiteco.com/locations for phone number listings. Thank you.