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David & Christine Loeffler invite you to experience their new eco-tourist Whifflebird Lodge at Oso Ridge, Zuni Canyon, NM (rental: 505-350-4693)

Zuni Mt NM Strawbale Hunting Lodge Cost/Savings Report

EPA-NREL Energy-10 Summary Page Jul 06, 2003

Description: 2x4 Wood Frame Reference Case 14" Strawbale Low-Energy Case Performance Notes:
Weather file: ALBQRQUE.ET1 ALBQRQUE.ET1 equal
Floor Area, ft² 1250.4 1250.4 equal
Wall Area, ft² 1350 1350 equal
Volume, ft³ 9072.0 9072.0 equal
Wall Construction 2 x 4 frame, R=12.6 strawbale, R=49.0

Strawbales are stacked in bond rows like very big bricks, rebar is driven through them at 18"oc. 18" shear bearing 9'oc with LVL rim plate. Structolite plaster interior. Stucco exterior.

Roof Construction attic, r-30, R=29.4 flat r-42, R=42.0 Wet Cellulose Blown-in wet cellulose insulation is recycled newsprint, glue, treated with anti-insect Borax. SIPI over attic trusses, loft.
Roof Area, ft² 1672 1672 equal
Window Type 4060 single, alum, U=1.20 4060 low-e al/b, U=0.31 Vinyl coated double pane low-e windows outperform old models.
Window Shading None 40 deg latitude Shading S & W windows during summer prevents overheating.
Window Area, ft² 216 96 Fewer windows on N & E prevents heat losses during winter months.
Windows (N/E/S/W:Roof) 2/2/3/2:0 1/1/5/1:0 see above, rotation of the building on site plan is sun study modeled for passive solar.
Floor type Slab on Grade, Reff=7.5

24" beadboard insulation Slab on Grade, Reff=31.4

Code now requires 24" ht R-4.35 (to R-7) beadboard surrounding foundation stems, although Rastra® and ICF forms include it. Blueboard r-7 is laid under Radiant S.O.G.

Added mass? none 1311 ft², 8in cmu Energy is stored only in plants, matter, earth-soils ie: mass. Now that your home is warm, store that energy to slow the temperature differentials in equivalent mass to freestanding interior partions, adobe, bancos, increased slab depth or a solar slab. In this case, int/ext plastering.
HVAC system

Gas Furnace

eff=80,EER=1.0

High Efficiency Gas Boiler, Rinnai eff=90,EER=13.0 Liquid Solar Panel augmented

Shop for higher EER rated HVAC equipment or Eco-Star rated ones. Boost storage with solar. **This report does not include the use of an airtight woodstove.

Infiltration, in² ELA=179.6 ELA=48.6 Seal up the air leaks at all possible openings. In this case, TJI framed roof rafters require eave to ridge 2" venting at outer deck.
Heating thermostat 70.0°F, no setback 70.0°F, setback to 65.0°F Programmable thermostats are a must, and learn to set them.
Swamp Cooling thermostat none none  
Energy use, kBtu 80024 31437 48,587 kBtus saved !
Annual Energy cost, $ 393 323 $ 70 per year saved !

Emissions, Pollution, lbs

CO2/SO2/NO

 

13323/40/25

 

7385/33/18

Less lbs of Annual Pollution:

5938/7/5

Construction Costs, $ 88518 93549 $ 5031 more up front (primarily in HVAC, t-stats, lighting, insulation, windows, and solar panels)
Life-Cycle Cost, 35 years 112173 113348

$ 1175 difference operating payback profits you, our community, ecology and economic health. And, for income producing hunting lodges, this isn't figured into the 35 year lifetime yet.

Results of Energy-10 programming are not guaranteed but, represent best predictions in given postulates. Energy-10 has been developed by the EPA, National Labs, DOE and SBIC for public benefit and use.

Rinnai® Radiant

Green? More sustainable home design is cost effective in the present economy as you can see in the report above. Beyond these industry and builder methods, additional energy and water savings paybacks may be realized with construction industry, national laboratory and university research, Department of Energy and State programs or codes.

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