Enerzone Solution 1.4 Size Guide

The Solution 1.4 is the most compact wood stove in the Enerzone lineup, sized for spaces between 250 and 1,200 square feet. It is the right choice when a full-size stove would overheat the room and the wrong choice when primary heating is needed for a larger home.

• Mobile and manufactured homes. The Solution 1.4 is mobile home approved and is the most common Enerzone choice for single-wide and small double-wide homes. Includes the outside air kit fitting required by HUD compliance.
• Cabins and seasonal cottages. The 5-hour burn time aligns well with overnight use in a cabin where the stove is the primary heat source for a single room or small open layout.
• Add-on rooms and shop spaces. Workshops, garages converted to living space, sunrooms, and basement family rooms. The compact footprint fits in corners that won't accommodate a larger stove.
• Supplemental heat for apartments and small homes. Used alongside central heating to reduce gas or oil consumption in a primary living area.
• Tiny homes and ADUs. The 22⅞″ wide × 27⅞″ deep footprint and 250 sq ft lower-range capacity make it one of the few EPA 2020 certified stoves practical for tiny home installations.

• Primary heating for homes over 1,200 sq ft. Step up to the Solution 1.7 (500–1,800 sq ft) or Solution 2.3 (500–2,100 sq ft).
• Cold climates with extended sub-zero winters. The 45,000 BTU/h max output is sized for moderate climates. In severe winter zones (Zone 7 or higher), step up one model size.
• Open-plan layouts exceeding 1,500 sq ft. Heat will not distribute effectively from the 1.4 in a large open floor plan — the stove will run continuously at peak output and still leave distant rooms cold.
• Overnight heating without reload. The 5-hour burn time means at least one mid-night reload for unbroken overnight heat. For 7-hour overnight burns, choose the Solution 1.7.
• Buyers wanting east-west log loading. The 1.4 loads logs north-south (ends facing the door). The 1.7, 2.3, 3.5, and Harmony 2.3 load east-west (sides facing the door).

The manufacturer's heating area range assumes average insulation and a moderate climate. Adjust your target square footage:

• Well-insulated, mild climate: Use the upper half of the range (700–1,200 sq ft).
• Average insulation, moderate climate: Use the middle of the range (500–800 sq ft).
• Poor insulation or cold climate: Use the lower half of the range (250–600 sq ft).
• High ceilings (9 ft+): Treat each foot of ceiling height above 8 ft as roughly 10% additional volume — reduce your target square footage by 10–20%.
• Open layouts with multiple rooms: Heat will concentrate in the room with the stove. Distant rooms will be 5–15°F cooler.

This table covers the Solution 1.4's fit across common home sizes. Verdicts assume 8-foot ceilings and average insulation. See the notes column for adjustments.

• 8-foot ceilings: Use the table values as published.
• 9-foot ceilings: Reduce your target by 10%. A 1,000 sq ft room with 9-foot ceilings behaves like a 1,100 sq ft room with 8-foot ceilings.
• 10-foot ceilings or vaulted: Reduce your target by 20%. A 750 sq ft vaulted living room behaves like a 900 sq ft room — still within the 1.4's range but tight.
• Loft or open second floor: Heat will rise. Add roughly 50% of the loft square footage to your target heating area.

• New construction or recently insulated: Use the table values. Heat retention will be excellent.
• Average residential insulation (1980s–2000s build): Reduce your target by 10–15%.
• Older homes with limited insulation: Reduce your target by 25%. A 1,000 sq ft poorly insulated farmhouse behaves like a 1,300 sq ft well-insulated home — exceeds the 1.4's rated capacity.
• Mobile homes: Vary widely. Modern manufactured homes with double-pane windows and modern insulation use the table values. Older single-wides require the lower end of the range.

All values below are for US installations, sourced from the Enerzone Solution 1.4 installation manual. Canadian clearances differ. Always verify against the certification label affixed to your stove, which is the authoritative source.

A non-combustible hearth pad is required beneath and around the stove:

• 16 inches in front of the door opening
• 8 inches on each side of the door opening
• Materials: steel (≥0.015″ thick), grouted ceramic tile on cement board, brick, or any listed floor protection product. No R-factor required.
• Pad must be continuous — no seams without underlayment.

• Chimney standard: ULC S629 / UL 103 HT (2100°F) factory-built, or masonry chimney with properly sized liner.
• Chimney diameter: 6 inches throughout — matches the stove's flue outlet. Larger chimneys must be lined to 6 inches with stainless steel liner.
• Minimum chimney height: 12 feet total, from the stove top to the chimney top.
• Flue outlet position: Top exit only. Vertical runs preferred over offsets — every elbow reduces draft.
• Connector pipe: 6″ diameter, minimum 24-gauge steel. Black painted (not galvanized).
• Chimney height above roof: At least 3 feet above the point where the chimney passes through the roof, and 2 feet higher than any object within 10 feet horizontally.

The Solution 1.4 is one of the few EPA 2020 certified non-catalytic wood stoves with documented mobile home approval in both the US and Canada. The certification is on the stove's data plate; the mobile home installation requirements are detailed in Section 6.10 of the Enerzone Solution 1.4 installation manual.

• Outside air intake kit. The AC01421 5″ Ø Fresh Air Intake Kit (for stove on legs) is required — sold separately. The kit sources all combustion air from outside the structure.
• Insulated fresh air intake pipe. HVAC-type insulated pipe meeting ULC S110 or UL 181 Class 0 or Class 1 standards. The pipe connects the outside air kit to the exterior wall.
• Double-wall connector pipe only. Single-wall connector pipe is forbidden in mobile homes — only double-wall is permitted.
• Factory-built chimney. ULC S629 / UL 103 HT (2100°F) rated. Masonry chimneys are not applicable in mobile home construction.
• Bolt-down to floor. All four legs must be screwed to the floor with proper hardware (one fastener per leg, four total). This is HUD-mandated structural attachment.
• Fire screen prohibited. Mobile home installations cannot use the door-open fire screen accessory (AC01420).
• Installation in sleeping room prohibited. Per HUD compliance, the stove cannot be installed in a bedroom or sleeping area.

For tight mobile home installations where wall space is limited, the AC02762 heat shield accessory reduces clearances to: back wall 3″, side wall 3″ (must remain ≥6″ on the door-handle side), corner 3″. The heat shield is required for any mobile home installation tighter than the standard double-wall values above.

The Solution 1.4 loads logs north-south — with the ends of the logs facing the door. The firebox is deeper (19⅛″) than it is wide (14¼″), so logs lie front-to-back. This differs from the larger Enerzone models (1.7, 2.3, 3.5, Harmony 2.3), which load east-west.

Practical implication: when buying or splitting firewood, cut to 16 inches as the recommended length (17 inches absolute maximum). Logs cut to 18 inches or longer for an east-west loading stove will not fit the 1.4.

• High burn rate: 4 logs — one larger (5×5″) and three smaller (4×4″) pieces, criss-crossed on the coal bed. Used for rapid heat-up and high BTU output for short periods.
• Medium burn rate: 5 logs — three on the coal bed in N–S orientation with air space between, two crossed on top. Used for sustained heating during the day.
• Low burn rate: 5 logs as above, with air control closed nearly fully. Used for overnight burns and slow sustained heat — extends burn time toward the 5-hour maximum.
• Always leave air space between logs and between logs and the brick lining for proper secondary combustion.

• Hardwoods preferred for sustained heat: oak, maple, ash, beech, hickory. Higher BTU per cord, longer burn time, less creosote.
• Softwoods for starting fires and shoulder seasons: pine, spruce, fir. Higher resin content — use as kindling and small additions, not as primary fuel.
• Moisture content under 20% strongly recommended. Manufacturer test fuel measured 19–25%; daily operation should target the lower end of that range. Use a digital moisture meter to verify before burning.
• Season wood at least one year in a covered, ventilated stack before burning.
• Never burn: wet/green wood (above 25% moisture), treated or painted wood, plywood or particleboard, garbage, plastics, accelerants, coal. Burning these damages the stove, voids the warranty, and produces toxic emissions.