Quarterly Financial Information (unaudited) (Details Textual) (USD $) In Millions, unless otherwise specified	0 Months Ended	1 Months Ended	3 Months Ended			12 Months Ended			3 Months Ended			12 Months Ended						3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended
	Mar. 22, 2013	Apr. 30, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2012 Hearth [Member]	Jun. 30, 2012 Hearth [Member]	Mar. 31, 2012 Hearth [Member]	Dec. 31, 2013 Hearth [Member]	Dec. 31, 2012 Hearth [Member]	Dec. 31, 2011 Hearth [Member]	Dec. 31, 2013 Service Experts [Member]	Dec. 31, 2012 Service Experts [Member]	Dec. 31, 2011 Service Experts [Member]	Mar. 31, 2012 Lease Termination [Member] Regional Distribution Network [Member]	Dec. 31, 2013 Lease Termination [Member] Regional Distribution Network [Member]	Dec. 31, 2012 Lease Termination [Member] Regional Distribution Network [Member]	Sep. 30, 2012 Goodwill in assets of discontinued operations [Member] Service Experts [Member]	Dec. 31, 2012 Goodwill in assets of discontinued operations [Member] Service Experts [Member]
Proceeds from Divestiture of Businesses	$ 10.4	$ 10.1
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax												0	(0.9)	0	1.4	0	0
Pre-tax charge for write-down of net assets to estimated fair market value											6.3		6.3
Restructuring charges			1.8		2.4	5.0	4.2	12.5										2.6	1.3	2.7
Loss Contingency, Loss in Period				0.8
Liability for Asbestos and Environmental Claims, Net, Period Increase (Decrease)			6.3			6.3
Settlement charge related to recognized actuarial losses										6.3			6.3
Discontinued operation in settlement of foreign currency translation										3.5			3.5
Impairment of goodwill																					20.5	20.5
Working capital adjustment included in net proceeds from sale of discontinued operations									$ 2.9