In this talk, Mike Schofield from CLEAResult talks about how building codes for new construction will impact the adoption of renewable HVAC technology in Massachusetts.

1. New
Construction
and
Heating/Cooling
Loads

2. High
Performance
Homes
Multifamily
Housing

3. Current
Practices
R20
Walls
R19-­‐30
Basement
R38-­‐49
Attic
u.35-­‐ .32
Windows
3-­‐7
ACH50

4. Performance
Practices
R20
Walls
-­‐> R
40
R30
Basement -­‐> R
40
R38
Attic -­‐> R
60
U.35
Windows -­‐> U
.18
7
ACH50 -­‐> 1
or
less
ACH50

5. For
Homes
1.3K
sf
to
3.5
K
sf
Current
Load
Typically
15
to
22
Btu/sf
Current
Practices
Heating
Energy
Load

6. At
2500
sf
and
20
Btus/sf
Load
is
50K
btu
Current
Practices
Heating
Energy
Load

7. For
Homes
1.3K
sf
to
3.5
K
sf
Current
Load
Typically
3
to
10
Btu/sf
Performance
Practices
Heating
Energy
Load

8. At
2500
sf
and
2
Btus/sf
Load
is
10K
btu
Performance
Practices
Heating
Energy
Load

9. According
to
modeling
software
Changing
from
95%
AFUE
(N
Gas)
to
Air
Source
Heat
Pump
Doubles
to
Triples
the
annual
heat
price
Cost
of
Operation
vs
Natural
Gas

10. The
Intersection
of
Cost
and
Comfort
Where
is
the
Success
of
Air
Source
Heat
Pumps?

11. Thank
You
Mike
Schofield