Disadvantages of a thermal wheel heat recovery include:
1. a large space is required
2. perfect sealing is impossible
3. the ducts must be side-by-side
4. the recovery rate is relatively low
a) 1,2
b) 3,4
c) 1,2,3
d) 2,3,4
e) 1,2,3,4
Answer: C
Disadvantages of a thermal wheel heat recovery include:
1. a large space is required
2. perfect sealing is impossible
3. the ducts must be side-by-side
4. the recovery rate is relatively low
a) 1,2
b) 3,4
c) 1,2,3
d) 2,3,4
e) 1,2,3,4
Answer: C