Explained: Heat Loss Gain Calculations, Duct & Ventilation Design (So you won’t need to ask, but you still can if you need too. We don’t mind)
Anyone who’s ever worked somewhere long enough to answer the same question (multiple times) in a day, eventually learns to spiel off a script to quell the ensuing phone queries as quickly and cle
arly as possible. What is it? How’s it done? Why are we doing it? Here at Saltzberry Design “What a Residential HVAC Design entails”, certainly echoes over again a few times a week. Let’s get you up to speed, by sharing some of the basics of our answers to what you’re getting, why it’s important, and the good it does to complete a Residential HVAC Design..
An HVAC Design is made up of three components; Heat Loss Gain Calculations (other times called; Heat loss, Heat Gain, HVAC Calc. , Load Calculations, Heating and Cooling Load), Duct Design, and Ventilation Design (Mechanical Ventilation Design Summary, Drawings & Details). Let’s break these down a little further.
Heat Loss Gain Calculations
Plain and simple it’s, What will it take to heat/cool my house, to the prescribed minimum indoor design temperature, during the coldest & warmest expected weather (while tossing out the extreme and sporadic one off weather days).
We’ll use your architectural drawing and details to enter the square footage of your rooms, and define the building (its wall assemblies, ceiling & floor types, R-values, window and door sizes and the project orientation. North, East, South, West).
After many pages of math (or in my case lines of code) we’re left with a Furnace and Air Conditioner size.
So I get it, right about now you're either geeking out on your new found HVAC Knowledge, or you’re pondering how you beached yourself here, badly missing out on your intended deep dive into so other mindless internet drivel, but I digress). So let's wrap this up quicker than a building inspector working on Monday morning inspections, Tuesday afternoon.
Duct Design
The furnace will sit here, this duct is how we’ll get the needed warm/cold air to each room. The sizes of the ducts will be as follows. This blows (supply air) and this sucks (return air).
Ventilation Design
Some things are better off outside. Like seriously what did they eat and how do I get that smell, (moisture, combustion gases, or other household containment) out of here? You'll use these fans with this setup. Yeah it’s bad enough as we know what we’ve done, no one else needs to know. Really. Let’s all agree to just use the fan.
So now that you have regretfully made this deep dive into some intro HVAC Knowledge, here comes the real payday you stuck around for. By completing a Heat Loss Gain Calculation, you’ll know we’ve selected a furnace capable of keeping you comfortable on some of the coldest and warmest days in Ontario. We’ll have an air conditioner sized to keep us cool in our increasingly warm summers, and a duct system designed to ensure we distribute that air where it’s required. Properly sized equipment and ducts ensure lower operating costs, better comfort and equipment longevity while delivering conditioned air to the needed areas, in ideal amounts.
For more information on HVAC Design, or if you require our design services, feel free to visit: www. bcinhvac2day.ca
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