1"""
2"""
3from __future__ import absolute_import
4
5from ..unitquantity import UnitQuantity
6from .temperature import K, degF
7from .length import m, ft
8from .power import W
9from .energy import BTU
10from .time import h
11
12
13RSI = UnitQuantity(
14    'RSI',
15    K*m**2/W,
16    doc='R-value in SI'
17)
18
19clo = clos = UnitQuantity(
20    'clo',
21    0.155*RSI,
22    aliases=['clos']
23)
24
25R_value = UnitQuantity(
26    'R_value',
27    ft**2*degF*h/BTU,
28    doc='American customary units'
29)
30
31
32del UnitQuantity, K, degF, m, ft, W, BTU, h
33