New technologies

We have embraced the use of new but proven technologies - we have the training & certification to install geothermal heat pumps -


We have over 30 years experience installing a variety of systems – everything from wood heat, gas, electric to geothermal and “green” energy systems.

Tax Credits

$150 Federal Tax Credit is available and up to 30% of the total cost of new energy efficient heating and cooling systems. Contact Us for details.

More Photos - HVAC Projects

Heating & Cooling

We have used forced air, radiant, makeup air ventilation systems, fan coil units, baseboard systems, and more...

I believe a customer is unique in their wants and needs. The type of system used is determined by the energy efficiency, cost of installation, maintenance and customer’s requests (air conditioning, etc.) We have done projects totally off the grid and new combination systems.

We furnish and install retrofit furnaces for manufactured homes and hard-to-find older installations

Arcoaire & Coleman Certified furnace installation & repair

We have the training to service and repair the systems we install

Rooney's Quality Construction and Plumbing - serving Montana for over 34 years

Give us a call today - (406) 547-2100

Send us an email

Energy efficiency

Department of Energy Measurements and Standards

In 1992, the Department of Energy set up a system to measure efficiency and established efficiency standards for the heating and cooling industry. Any predated, inefficient units can be wasting your energy dollars. Remember, no product can be 100% energy efficient.

Actual savings on a new heating or cooling unit depend on several variables: the weather in your area, utility costs, the insulation of your home, the installation of your existing system, and your personal comfort preferences.

Generally, if you live in a hot climate, you may benefit from a higher SEER cooling unit. If the cold outlasts the warm weather and you have above average fuel costs, you may need a higher AFUE furnace.

Environmental Protection Agency Energy Star Program


The Energy Star Program, initiated by the Department of Energy and the EPA, Department of Energy promotes the use of energy efficient products.

SEER - stands for Season Energy Efficiency Ratio and applies to central air conditioners and heat pumps. The minimum set by the Department of Energy is 10 SEER and for Energy Star, 13 SEER. The higher the SEER, the greater the energy economy.

AFUE - stands for Annual Fuel Utilization Efficiency and applies to heating products. The minimum set by the Department of Energy is 78% AFUE and for Energy Star, 90% AFUE. The higher the AFUE, the greater the energy economy.

HSPF - stands for Heating Seasonal Performance Factor and measures heat pump efficiency. The minimum set by the Department of Energy is 6.8 HSPF and for Energy Star, 8 HSPF. The higher the HSPF, the greater the energy economy.