Discontinued Operations (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Service Experts [Member]
Assets of discontinued operations:
Accounts receivable, net	$ 11.2	$ 14.4
Inventories, net	4.8	6.3
Property, Plant and Equipment, net	3.6	3.8
Goodwill and intangible assets, net	66.2	83.2
Deferred income taxes	5.5	10.1
Other assets	7.3	7.7
Liabilities of discontinued operations:
Accounts payable	16.7	16.0
Accrued expenses	38.5	40.1
Deferred income taxes	0	3.7
Other Liabilities	0	0.2
Hearth [Member]
Assets of discontinued operations:
Accounts receivable, net	0	7.3
Inventories, net	0	12.4
Property, Plant and Equipment, net	0	5.4
Deferred income taxes	0	9.1
Other assets	0	0.8
Liabilities of discontinued operations:
Accounts payable	0	6.0
Accrued expenses	0	5.2
Other Liabilities	$ 0	$ 0.4

Disposal Group, Including Discontinued Operation, Goodwill and Intangible Assets, Net

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- Definition

For the disposal group, including a component of the entity (discontinued operation), the aggregate of amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business and an amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection and net of any write-downs taken for collection uncertainty on the part of the holder, respectively.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 47

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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For the disposal group, including a component of the entity (discontinued operation), carrying value of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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For the disposal group, including a component of the entity (discontinued operation), carrying value of obligations incurred and payable pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include interest, rent, salaries, and utilities.

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For a disposal group, including a component of the entity (discontinued operation), represents the deferred tax assets (net of any valuation allowances), which result from applying the applicable tax rate to net deductible temporary differences and carryforwards pertaining to each jurisdiction to which the entity is obligated to pay income tax. A deductible temporary difference is a difference between the tax basis and the carrying amount of an asset or liability in the financial statements prepared in accordance with generally accepted accounting principles that will result in deductible amounts for tax purposes in future periods if there is sufficient tax-basis income to enable the deduction to be taken.

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For the disposal group, including a component of the entity (discontinued operation), carrying amount of inventories (net of all valuation allowances and write-downs).

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For the disposal group, including a component of the entity (discontinued operation), carrying value (net of accumulated depreciation and any write-downs) of tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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