Traditional vs. Linear: Which Kozy Heat Gas Fireplace Is Right for Your Home?

A Complete Style & Performance Guide for Sacramento-Area Homeowners

Sacramento Advantage — All Kozy Heat Gas Fireplaces

Every unit on this page is a direct-vent sealed combustion appliance. Air is drawn from outside; fumes exhaust outside. No indoor air quality impact. No SMAQMD Spare the Air restrictions apply. Burn freely, year-round.

Traditional vs. Linear — At a Glance

Traditional fireplaces have a tall, portrait-format firebox, typically use hand-painted log sets, and produce a classic log-fire flame. They suit traditional, transitional, and farmhouse interiors, and their BTU output ranges from 28,000–40,000 BTU/hr. Mounting a TV above is possible with a heat management kit, but see-through and multi-sided installations aren't available.

Linear (modern) fireplaces have a wide, landscape/ribbon-format firebox and can use glass, rock, logs, or spheres as media, producing a wide ribbon or 3D modern flame. They suit modern, contemporary, and minimalist interiors, with BTU output ranging from 35,500–50,000 BTU/hr. TVs mount above as a standard option (Komfort Zone Kit), and see-through (Callaway See-Thru) and multi-sided (Generation 6020) installations are both available.

Traditional Gas Fireplaces — Timeless Warmth, Modern Efficiency

A traditional gas fireplace is designed to evoke the look and feel of a classic wood-burning hearth — tall, portrait-oriented firebox, hand-painted log sets, and a fire that crackles behind a glass screen. Today's traditional gas fireplaces are vastly more efficient and cleaner-burning than the open masonry fireplaces they often replace.

Springfield 36 — Our Recommended Traditional Flagship

The Springfield 36 is Kozy Heat's premier deep-firebox traditional gas fireplace. At 35,000 BTU/hr with a 21-5/8" x 29-7/16" viewing area, it delivers both presence and power. The deep firebox creates a sense of genuine depth behind the log set. It includes a full-function Komfort Kontrol remote, dual 75CFM blowers, a high-low flame regulator, and an ember bed lighting kit as standard.

It runs at 73.88% AFUE efficiency on natural gas (72.16% on LP), with a steady-state efficiency of 79.55% NG / 78.43% LP. It features a high-definition traditional log set, electronic IPI ignition, and comes standard with a fan kit (2x75CFM), full remote, high-low regulator, ember lighting, and finish trim. Refractory options include Ledgestone, Traditional Brick, Masonry, Black Glass, and Rustic Brick.

Nordik 36DV / 41DV / 48DV — Traditional Shape, Revolutionary Flame

These units combine the portrait-oriented firebox of a classic fireplace with Kozy Heat's EVO Elevated Burner technology — the same 3D flame system featured in the Nordik insert line. Instead of flat floor burners, EVO projects flame upward and around the log set, creating the kind of height and depth that makes people stop and look twice.

The Nordik 36DV has a 32-5/8" x 26-7/8" viewing area, 35,000 BTU (NG), and 71.71% AFUE — offering a large portrait view with the EVO 3D flame. The Nordik 41DV steps up in size with roughly 40,000 BTU and about 71% AFUE, a solid mid-range option. The Nordik 48DV is the largest of the three, at roughly 45,000 BTU and about 71% AFUE, built for large room coverage.

Other Traditional Models Worth Knowing

The Alpha 36S is a clean-face traditional fireplace available in an arched or rectangular opening with a log set — ideal for formal living rooms. The Bayport 36 and 41 are direct-vent units available in log or glass media, solid workhorse traditional fireplaces. The SP34 and SP41 have a slim-profile design with very low clearances, perfect for tighter wall installations. The Bellingham 38, 44, and 52 are lower-profile landscape units that maintain a traditional aesthetic while allowing safe TV mounting above.

Linear Gas Fireplaces — Bold, Modern, Architecturally Striking

Linear fireplaces are defined by their wide, low-profile viewing window — a landscape format that creates a ribbon of fire stretching across the wall. They also unlock design capabilities that traditional units can't offer: TV mounting above the flame, see-through views, multi-sided installations, and a far wider range of media options including glass, lava rock, birch logs, beach accents, and — in the newest Generation 6020 — geometric glass spheres.

Generation 6020 — The New Standard in Modern Luxury

The Generation 6020 is Kozy Heat's most significant new product launch in years. This is a frameless, double-glass direct-vent gas fireplace with a 60" x 20" viewing area — one of the largest in its class — and an extraordinary 50,000 BTU/hr output. One model, four configurations: standard front-facing, left or right corner, or a dramatic three-sided bay.

BTU input runs 50,000 on high and 27,000 on low (both NG and LP), with AFUE efficiency of 71.05% NG / 72.72% LP. It offers a fan-cooled double-glass system (6020) or an Invisimesh screen option (6020-S). Media options include weathered logs, birch logs, geometric spheres, lava rock, and glass. Standard features include a multi-color LED ember kit, top accent light, Komfort Kontrol remote, and Ice glass media. It's certified to ANSI Z21.88 Vented Gas Heater standards.

Callaway Series — The Linear Workhorse Line (40, 50, 72 & See-Thru)

The Callaway 40 has roughly a 13" x 39" viewing area, about 30,000 BTU on high, and about 70% AFUE — a great choice for smaller rooms or a first linear fireplace. The Callaway 50 has a 13-3/8" x 49-7/8" viewing area, 35,500 BTU, and 66.5% AFUE, well suited to mid-size modern living rooms. The Callaway 72 has a 72-7/8" x 15-3/4" viewing area, 49,500 BTU, and 74.8% AFUE — built for large rooms and a dramatic feature wall. The Callaway See-Thru offers a linear view on both sides, roughly 35,500 BTU, and about 66% AFUE, ideal for open-plan rooms or as a room divider.

Nordik 48TL / 60TL — Tall Linear with EVO Flame Technology

For homeowners who want a linear format but crave more flame height and drama than a standard landscape unit provides, the Nordik Tall Linear series offers a compelling middle ground. These units use the EVO Elevated Burner system in a tall-linear format — wider than traditional, taller than conventional linear — creating a bold, vertical-oriented ribbon of 3D fire.

Which Style Is Right for You?

Choose a Traditional Kozy Heat Fireplace if: your home has a classic, transitional, or farmhouse interior aesthetic; you want the most natural-looking log fire, especially with EVO technology in the Nordik DV series; you're fitting into an existing fireplace opening or surround; high efficiency is your top priority (the Springfield 36 leads at 79.55% steady-state); or you prefer a taller, more vertical flame presentation.

Choose a Linear Kozy Heat Fireplace if: your home is modern, contemporary, or has a minimalist design sensibility; you want to mount a TV safely above the fireplace (Komfort Zone Kit standard option); you're building a feature wall and want dramatic width; you want maximum BTU output (the Generation 6020 tops the lineup at 50,000 BTU/hr); you want installation flexibility with corner, bay, or see-through configurations; or you want contemporary media like crushed glass, lava rock, or geometric spheres.

Our Verdict

Best Traditional Pick: the Springfield 36 — the highest steady-state efficiency (79.55%) in the traditional line, deeply featured as standard, and a gorgeous deep firebox. For those who want the most realistic traditional flame, the Nordik 36DV with EVO burners is the pick. Best Linear Pick: the Generation 6020 — the most versatile, powerful, and visually innovative fireplace in Kozy Heat's entire catalog, with four installation modes, 50,000 BTU, a frameless design, and media options no competitor currently matches. For proven linear value, the Callaway 72 is a strong choice.

Every Kozy Heat fireplace we carry at Custom Fireside is a direct-vent unit: sealed combustion, outside air, outside exhaust. Zero indoor air quality concerns, and complete exemption from Sacramento's Spare the Air restrictions. Whatever style you choose, you can enjoy it any day of the year.

Custom Fireside — Sacramento, CA — Authorized Kozy Heat Dealer Visit our showroom — no appointment necessary. | customfireside.com