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Split-system air source heat pump

Split-system air source heat pump
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Stone cladding system with a drainage mat provides a small, vented gap (≤ ¾ inch), over a water-resistant barrier house wrap that has a perm rating of 10 to 20 perms so it can serve as a vapor throttle.

Stone cladding system with a drainage mat provides a small, vented gap (≤ ¾ inch), over a water-resistant barrier house wrap that has a perm rating of 10 to 20 perms so it can serve as a vapor throttle.
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Stucco wall assembly with a drainage mat providing a small vented gap (experience has shown that ≤ 3/8 inch is effective), and a water-resistant barrier house wrap serving as a vapor throttle.

Stucco wall assembly with a drainage mat providing a small vented gap (experience has shown that ≤ 3/8 inch is effective), and a water-resistant barrier house wrap serving as a vapor throttle.
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Super-heated air and gases from wildfires will dry and heat the fuel, both vegetation and structures, in the path of the oncoming, uphill-moving fire.

Super-heated air and gases from wildfires will dry and heat the fuel, both vegetation and structures, in the path of the oncoming, uphill-moving fire.
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Table 502.1 Fire Hazard Severity - Critical Fire Weather Frequency

Table 502.1 Fire Hazard Severity - Critical Fire Weather Frequency
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Table 503.1 Ignition-Resistant Construction - Fire Hazard Severity

Table 503.1 Ignition-Resistant Construction - Fire Hazard Severity
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Table 603.2 Required Defensible Space - Fuel Modification Distance

Table 603.2 Required Defensible Space - Fuel Modification Distance
Case Study:

Technology Solutions Case Study: Advanced Controls Improve Performance of Combination Space and Water Heating Systems, Minneapolis, Minnesota

Case Study:

Technology Solutions Case Study: Advanced Controls Improve Performance of Combination Space- and Water-Heating Systems

Case Study:

Technology Solutions Case Study: Combustion Safety Simplified Test Protocol

Case Study:

Technology Solutions Case Study: Field Performance of Inverter-Driven Heat Pumps in Cold Climates

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Technology Solutions Case Study: Hydronic Systems: Designing for Setback Operation

Case Study:

Technology Solutions Case Study: Long-Term Monitoring of Mini-Split Ductless Heat Pumps in the Northeast, Devens and Easthampton, Massachusetts

Case Study:

Technology Solutions Case Study: Low-Load Space-Conditioning Needs Assessment

Case Study:

Technology Solutions Case Study: Replacing Resistance Heating with Mini-Split Heat Pumps

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Tempered glass windows usually have an etched marking on the glass in the corner of the window that includes the supplier's name, place of fabrication, date manufactured, thickness, and certifications or safety standards the glass meets.

Tempered glass windows usually have an etched marking on the glass in the corner of the window that includes the supplier's name, place of fabrication, date manufactured, thickness, and certifications or safety standards the glass meets.
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The combustible rigid foam insulation is protected by a non-combustible layer of mineral wool insulation; a 7/8 inch “hat-channel” provides the ventilation and drainage gap.

The combustible rigid foam insulation is protected by a non-combustible layer of mineral wool insulation; a 7/8 inch “hat-channel” provides the ventilation and drainage gap.
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The combustible siding product on the left side in this demonstration burns readily when exposed to a burning wood sample, while the noncombustible siding on the right does not ignite

The combustible siding product on the left side in this demonstration burns readily when exposed to a burning wood sample, while the noncombustible siding on the right does not ignite
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The ductless air handler of a ductless heat pump can be mounted above the ceiling so that only the register is visible

The ductless air handler of a ductless heat pump can be mounted above the ceiling so that only the register is visible
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The furring strips that provide a drainage gap behind the lap siding are wrapped with ≤ 1/8-inch screen at the top and bottom of the wall to keep out bugs and burning embers.

The furring strips that provide a drainage gap behind the lap siding are wrapped with ≤ 1/8-inch screen at the top and bottom of the wall to keep out bugs and burning embers.
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The high-efficiency air-to-air heat pump is set in an overflow pan with an emergency shut off sensor in case the condensate tube were to clog and cause condensate to fill up the pan.

The high-efficiency air-to-air heat pump is set in an overflow pan with an emergency shut off sensor in case the condensate tube were to clog and cause condensate to fill up the pan.
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The high-efficiency mini-split heat pump provides cooling and heating; a drain pipe carries condensate away to a location that meets local code requirements.

The high-efficiency mini-split heat pump provides cooling and heating; a drain pipe carries condensate away to a location that meets local code requirements.
Video:

The Mechanics of a Ground Source Heat Pump

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The minimum required plumbing connections and trim for fire sprinkler connection to municipal water with a standalone wet sprinkler system.

The minimum required plumbing connections and trim for fire sprinkler connection to municipal water with a standalone wet sprinkler system.