Reportable Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net Sales
Net Sales	$ 684.2	$ 669.4
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	5.1	0.8
Reconciliation to income from continuing operations before income taxes:
Special product quality adjustment	(0.4)
Items in Gains and other expenses, net that are excluded from segment profit (loss)	(1.5)	0.9
Restructuring charges	3.1	1.2
Interest Expense (including fees)	4.7	4.1
Other expense, net	0
Loss from continuing operations before income taxes	(0.8)	(5.4)
Residential Heating & Cooling [Member]
Net Sales
Net Sales	272.6	253.6
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	11.0	4.4
Commercial Heating & Cooling [Member]
Net Sales
Net Sales	137.0	138.8
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	6.0	5.9
Service Experts [Member]
Net Sales
Net Sales	101.6	116.5
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	(11.5)	(8.2)
Refrigeration [Member]
Net Sales
Net Sales	185.1	175.1
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	14.2	13.5
Corporate and Other [Member]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	(14.4)	(14.5)
Eliminations [Member]
Net Sales
Net Sales	(12.1)	(14.6)
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	$ (0.2)	$ (0.3)