What is a Manual J?

A Manual J is an ACCA Certified calculation of the heating and cooling loads of a home or commercial structure.

The Manual J is a scientific way to size equipment, unlike the old fashinoned method of square footage and the age of the home.

To properly calculate loads, we take the known insulation values of walls, floors, and attics, the window sizes and quantity, orientation, and building tightness, and insert this information into our software to form a room by room load calculation of your home.

These building envelope values are then assessed using the ASHRAE Climatic Design Conditions for your address, and you are given an accurate assessment of your home’s heating and cooling needs.

With years of experience in Manual J reports, HERS Ratings, HVAC installation, and Energy Consulting, we provide you with the most accurate Manual J report and efficiency upgrade recommendations within three days. Our Manual J’s are guaranteed to be accepted for HVAC system permitting all over the US. We are happy to work with you to meet deadlines and help through you the system sizing process. Our goal is to use our expertise to help you make the best choices based on energy efficiency and financial return.

What consulting services do we offer?

We offer consulting services for insulation upgrades, heating and cooling equipment comparisons, and energy efficiency upgrades such as air sealing, ventilation, and appliances.

We review HVAC, water heater, and insulation quotes, and provide you with a detailed analysis of the best options, and make suggestions when there are better options.

We look through our appliance database to compare refrigerators, dishwashers, clothes washers, and clothes dryers, to help you make an informed decision.

We send you verified AHRI efficiency data and highlight key areas of focus.

We offer ventilation guidelines and requirements, and provide ERV and Ventilation fan efficiency comparisons and best practices.