Question

need someone to walk me through this

Home Weatherization: A Simulation Many homes have been constructed with insufficient insulation and without proper weatherization. Homes can be made more energy efficient by adding attic and crawl space insulation, by installing storm doors and storm windows, and by caulking windows and doors. In order to conserve energy and save money on fuel bills, you have decided to investigate a home weatherization program for your house. To weatherize your home, you need to reduce the heat that is lost by conduction and infiltration. Heat lost by conduction is the heat that escapes through the building materials. All materials used in building construction reduce the flow of heat, but insulation if more effective in reducing the flow of heat. Heat loss by infiltration is heat lost through the leakage of air. Air can leak in and out of a house through the cracks around windows and doors, through foundation cracks, and around electrical outlets. You have inspected your home and consulted an energy savings guide to come up with the data in the chart below. ESTIMATE OF ANNUAL ENERGY SAVINGS Proposed Changes Heat To Be Saved Type of Heat Loss to Building (Million Btu) Infiltration Caulk and weatherstrip all doors and windows 25.1 Conduction through: Insulate upper portion of Floors basement walls 7.5 Ceilings Add 6 in. of insulation to ceiling 15.0 Windows Add storm windows 7.95 Walls None walls already insulated 0 TOTALS 55.55 In order to save energy. you decide to make the proposed changes to your home. Complete the chart below to estimate the cost of each change. Since you will do the work yourself, there will be no labor charge. Type of Material Number of Units Estimated Cost 1. Caulking 10 tubes Cost per Unit 5 tubes of $1.89 each 5 tubes at $4.29 each 17-It roll costs $2.65 2. 221 tt 3. 992 sq ft 32 sq.ft panel costs $4.39 Weather stripping Foam panels for basement walls Insulation: 6-in. fiber glass balts Storm windows 4. 1250 sq ft 50-sq.ft roll costs $15.49 5. 8 $135 per window Total

Answer 1

In this case you need to estimate the cost for avoiding the type of Heat Loss :

Below is the table showing Type of Heat Loss and estimated Cost required for proposed changes :

S.no.	Type of Heat Loss	Type of Material used to reduce heat Loss	Workings for estimated Cost	Estimated Cost
1	Infiltration	Caulking	[(5 * 1.89) + (5 * 4.29)]	30.9
		Weather Stripping	[(221 ft / 17ft) * 2.65]	34.45
2	Conduction through floors	Foam panel for basement wall	[(992sq ft / 32sq ft) * 4.39]	136.09
3	Conduction through Ceiling	Insulation	[(1250sq ft. / 50sq ft.) * 15.49]	387.25
4	Conduction through Windows	Storm Windows	[135 per window * 8]	1080
			Total	1668.69

Therefore basically this question first idenfies the type of heat loss and proposed changes through which it can be reduced and esimated cost needed for making the proposed changes to reduce heat loss.