Chapter 4: Heat Load Lab d. Fuel oil number 2 (78% efficiency) e. Electricity, resistance heating (100% efficiency) 31) For the previous exercise: Approximate the fuel cost over the heating season, based on current energy costs. (It will be necessary for you to contact local suppliers to get local costs.) 32) Not assigned 33) Not assigned 34) For the office building in the preceding table (page 109), compute the following for 2006: a. Monthly natural gas consumption based on Btu/ft? of floor area. b. Annual natural gas consumption based on Btu/ftof floor area. C. Monthly natural gas consumption normalized for weather conditions (degree-days), based on Btu/ft?*(*F* day). d. Annual natural gas consumption normalized for weather conditions (degree-days), based on Btu/ft2*(*F* day). 35) For the office building in the preceding table (page 109), compute the following for 2007: a. Monthly natural gas consumption based on Btu/ft? of floor area. b. Annual natural gas consumption based on Btu/ft? of floor area. C. Monthly natural gas consumption normalized for weather conditions (degree-days), based on Btu/ft?*(*F*day). d. Annual natural gas consumption normalized for weather conditions (degree-days), based on Btu/ft2*(*F* day). 36) Calculate the heat loss for a top-floor apartment and an apartment that is below the top floor, using the apartment building in Appendix A. Assume the apartment will be built at the geographical location you reside. 37) Calculate the heat loss for the residence in Appendix D on a room-by-room basis. Assume the residence will be built at the geographical location where you reside