DESIGN For YOUR FAMILY'S HEALTH and COMFORT


A Manual J HVAC Design is the first stepping stone to a good comfort system, whether you are installing air conditioning, forced air heating, a radiant heating system, or considering a geothermal system.

Any heating and air conditioning (hvac) contractor worth his salt knows this, and will perform an hvac design load calculation to determine your home's actual hvac comfort system requirements, before he tries to sell you a system.

For too many years, hvac  have not been required to perform the proper load calculations before getting a permit from local authorities. Very few building authorities across our country, up until now, have required any sort of design or sizing justification before a permit was issued.

Consequently, our trade has been inundated with "contractors" whose only qualifications seem to be that they could afford the license fees, a white van, and advertising space!

The results have been many thousands of bad hvac installations, oversized and undersized systems, costing the homeowner dearly on his utility bills. The homeowner has also suffered high frustration levels, year after year, because his hvac systems don't perform well, and are constantly needing service.

Well, the times they are a changin'.

Recently, I attended a training session in Salt Lake City, Utah, where a room full of local building inspectors were there to learn about the new hvac design requirements being implemented. The same Manual J calculations, which I have been performing for many years! 

Most municipalities surrounding Salt Lake City are now also falling in line and beginning to require a Manual J calculation, a Manual D calculation, a duct layout (schematic), and a gas line design, before a permit will be issued.

California and Florida have long required the proper heat loss/gain calculations be performed due to more stringent building codes. I am hearing daily of other areas, in other states, finally seeing the value in proper hvac design.

The days of "Rule of Thumb" design are finally coming to an end! Hallelujah!

Now we just need to start weeding out the good contractors that care from those that have no business being in the HVAC business!
 

Your home may be your single largest investment. You might even think that you have the right to be warm in the winter, and cool in the summer. How unique.

Insisting that a good Manual J calculation be performed, before putting your signature on the dotted line, will help separate the good guys from the "crowd".

Don't take me wrong, there are plenty of good, honest, skilled heating and air conditioning companies out there. The trick is figuring out who is who. 

Our Philosophy is: A quality hvac installation begins with a professional hvac design. The load calculation is where it all begins.

• If you are a homeowner or do-it-yourselfer considering a new furnace or adding air conditioning, contact us for your calculations.
• If you are a homeowner or builder planning a new home, contact us for your calculations and duct designs.
• If you are an architect wishing to add our services as an option for your prospective clients, contact us to discuss package options.

This site is meant to promote the importance of Manual J calculations, Manual D calculations, proper duct design, and the importance of requiring these load calculations be performed, before signing a contract with any Heating and Air Conditioning contractor.

It is not our intentions, in these pages to make you an hvac expert, but to give you enough ammunition to ensure that the comfort system you desire and pay for, is truly the system you receive.

You don't need to be a "rocket scientist" to have a perfect home comfort system. You don't need to know the boiling point of R22 refrigerant, or how a thermal expansion valve works, to have an economical well functioning air conditioner in your home.
 
www.hvacdesignpros.com and www.hvacdesignpros.net are domains owned by Perfect Home Hvac Design. We are a web-based hvac design company dedicated to promoting and providing accurate Manual J calculations, Manual D duct design, Equipment selection, and Gas line designs for the Homeowner, Builder, Architect, and discerning Do-It-Yourselfer.

If you are in the market for an HVAC DESIGN or just looking for information, check out our main site. Our main site has dozens of info pages covering everything HVAC.

Visit us at: 
     www.perfect-home-hvac-design.com