Healthy Indoors | 37
environments for humans to live in that
can be sold to most consumers, installed
by most HVAC contractors, and that can
deliver excellent comfort and air quality
automatically.
BAD ASS HVAC is all about delivering
the 6 Functions of HVAC which deliver
that excellent comfort and air quality. All
cars since 2000 can do 5 of these, most
homes can't do any.
Developing BAD ASS HVAC
For years I've been learning about
indoor air quality and watching the
products to improve it. My constant
frustration has been this: they are too
difficult to sell, install, and maintain as
well as being too expensive for most
consumers to see the value in to buy.
This is a shame because we breathe
3000 gallons of air a day, and we have
direct control over about 2/3 of that air,
because it's in our homes.
According to the Corsi Code, named
after air quality researcher Dr. Rich Corsi,
we spend 54 of our 79 years inside our
homes.
That means that as parents we can
help our kids' health by providing healthier
air to breathe, and we can provide healthi-
er air for ourselves to breathe too!
But only if we can buy a system that
can provide the 6 Functions of HVAC
and have it installed well enough to work.
Oh, and it must be maintained too, so
easy maintenance is critical if it is likely to
continue to work well.
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What BAD ASS HVAC Looks
Like: The Short Version
Over the past 7 years we've been devel-
oping BAD ASS HVAC, trying out different
types of equipment, and then using air
quality monitors to see what works and
what doesn't. We've now come to a
conclusion with that work, it looks like this:
Here are the elements of BAD ASS
HVAC:
1. Load Matching — right sized
variable speed HVAC, preferably a
heat pump
2. Filtration — MERV 11+ media
filter in same sized duct
3. Dehumidification — reheat/stand-
alone
4. Fresh Air — fresh air duct that
closes at low/high temps
5. Mixing — Big Air Drop for low
static pressure & usage
6. Humidification — based on out-
door temp
There are some key things to
note about this design:
• Simple - It only uses one piece of
HVAC equipment ideally - a variable
speed heat pump with reheat dehu-
midification capability.
• Low Maintenance - It only has one
filter, which tackles filtering both
incoming outdoor air and air inside
the house.
• Looks "Normal" - Our clients find
mini split heat pumps a bit unnerv-
ing, this looks just like their existing
furnace or heat pump.
