economical [Adjective] + heating [Noun]

Strength Strength Dispersion
A:
4
CHISQ:
167.11
AWT:
17,874,770
TTEST:
1.95
G2:
30.21
FAWT:
3.04
MI:
5.45
LOGLOG:
10.9
JD:
0.51
MI3:
9.45
DICE:
0.33
RANGE: