Tiny Home Heat Loss Calculator

Estimate heating load and thermal battery capacity.

Enable A/B Comparison

Shared Building & Climate Settings

Building Shape

Indoor Target (°F)

Design Outdoor (°F)

Ground Temp (°F)

Vehicle Color

Construction Details

Quick Preset

Wall Assembly

Structure Type

Material

Stud Size

Spacing

Cavity Insulation

Continuous Insulation (R-Value)

Fastener Type

Fastener Density (screws/sq ft)

Roof R

Floor R

Foundation / Skirting

Insulation (R)

Height (ft)

Skirting Air Tightness

Windows & Doors

Glazing Preset

Window Area (sq ft)

Window R-Value

Door Area (sq ft)

Door R-Value

Air Sealing

Thermal Mass

Floor Type

Thick (in)

Scenario B (Comparison)

Quick Preset

Wall Assembly

Structure Type

Material

Stud Size

Spacing

Cavity Insulation

Continuous Insulation (R-Value)

Fastener Type

Fastener Density (screws/sq ft)

Roof R

Floor R

Foundation / Skirting

Insulation (R)

Height (ft)

Skirting Air Tightness

Windows & Doors

Glazing Preset

Window Area (sq ft)

Window R-Value

Door Area (sq ft)

Door R-Value

Air Sealing

Thermal Mass

Floor Type

Thick (in)

Simulation Settings (Shared)

Duration

Internal Heat Gain

BTU/hr

Daily Low (°F)

Daily High (°F)

Show Detailed Loads (Occupants & Appliances)

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Note: Only sensible heat (temp rise) is calculated. Latent heat (moisture) is excluded from this thermal model.

Estimated Results

Peak Heat Loss (BTU/hr)

0 °F/hr

Passive Temp Loss

Loss Breakdown:

Heat Loss Analysis

Loss Breakdown

Passive Simulation

Indoor temperature drift with NO supplemental heating.

Resets all inputs. Custom sources are retained but unselected.

Tiny Home Heat Loss Calculator

Shared Building & Climate Settings

Construction Details

Foundation / Skirting

Windows & Doors

Thermal Mass

Scenario B (Comparison)

Foundation / Skirting

Windows & Doors

Thermal Mass

Simulation Settings (Shared)

Estimated Results

Scenario B Results

Heat Loss Analysis

Loss Breakdown

Passive Simulation

Help / Documentation