What Is the Difference Between a Gas Insert and a Built-In
A gas insert is designed to fit into an existing wood-burning fireplace opening. A built-in (or zero-clearance) gas fireplace is a free-standing unit installed in a new framed opening in a wall. The right choice depends on whether you have an existing firebox. ROMA Heating & Cooling has been Greater Vancouver’s trusted HVAC contractor since 1999. We’re TSBC-licensed, fully insured, and rated 4.8★ by over 158 verified customers.
Gas Fireplace Insert
An insert is specifically engineered to slide into the opening of an existing masonry or factory-built wood-burning fireplace. It uses the existing chimney (with a new flexible liner) for venting.
Best for:
- Homes with an existing wood-burning fireplace you want to convert to gas
- Improving the efficiency of an existing fireplace
- Lower installation cost vs. a new built-in
- Maintaining the aesthetic of an existing brick or stone surround
Sizes available: Small (22″–26″ wide), medium (28″–34″ wide), large (36″–42″ wide) — must match your existing firebox dimensions.
Built-In (Zero-Clearance) Gas Fireplace
A built-in fireplace is a complete self-contained unit installed in a new framed wall opening. “Zero clearance” means combustible framing can be built directly around the unit (no masonry required).
Best for:
- Adding a gas fireplace to a room that never had one
- Modern linear or designer fireplaces
- Feature wall installations
- New construction and major renovations
Venting: Direct vent through exterior wall (most common in Vancouver) or B-vent through the roof.
Cost Comparison in Vancouver
| Type | Typical Installed Cost |
|---|---|
| Gas insert (into existing firebox) | $2,500 – $5,500 |
| Built-in (new wall opening, standard) | $4,500 – $8,000 |
| Linear built-in (designer feature wall) | $5,000 – $15,000+ |
Service Areas
ROMA installs gas inserts and built-in fireplaces throughout Vancouver, Burnaby, Richmond, Surrey, Coquitlam, New Westminster, North Vancouver, West Vancouver, Port Moody, Port Coquitlam, Delta, Langley, Maple Ridge, Pitt Meadows, and Abbotsford.
- Can I install a linear gas fireplace as an insert?
- Standard linear fireplaces are built-in units, not inserts — they’re designed for new framed openings with specific depth and width requirements. However, some manufacturers make wide-format inserts for oversized masonry fireboxes. ROMA will assess whether a linear-style insert is possible for your existing firebox during the site visit.
- Which is better — an insert or a built-in fireplace?
- Neither is inherently “better” — they serve different purposes. If you have an existing wood-burning fireplace, a gas insert is the most cost-effective conversion. If you’re starting fresh in a wall that never had a fireplace, a built-in gives you complete design freedom.
- Can I remove my old wood-burning firebox and install a built-in in its place?
- Yes — demolishing the existing masonry firebox and replacing it with a modern direct-vent built-in is possible, though it involves masonry demo, framing, and drywall work in addition to the gas installation. ROMA can coordinate the full scope or work alongside your contractor.
- Do gas inserts look like real fireplaces?
- Modern gas inserts with ceramic logs, ember beds, and realistic flame technology look very convincing. Top models from Napoleon, Valor, and Heat & Glo use lifelike log sets and glowing ember beds that most guests mistake for wood fires. The sealed glass front is the main visual difference from a true wood fire.
- How do I measure my firebox for a gas insert?
- Key measurements: opening width (at widest point and narrowest), opening height, firebox depth, and rear width. ROMA takes all measurements during the site assessment and selects the correct insert for your specific firebox. Never order an insert without professional measurement — returns and exchanges are expensive.
Related Services
- furnace repair Greater Vancouver
- boiler repair Greater Vancouver
- heat pump installation Greater Vancouver
Book Your Service
Call ROMA Heating & Cooling at (604) 924-7273 or request a free quote online. Serving Greater Vancouver since 1999 — TSBC licensed, fully insured.
What Greater Vancouver Homeowners Say
“Nelson worked hard to get the NTI unit fixed. He was always polite, courteous and on time.”
“As always Nelson was super efficient. Showed up on time and was quick to work. I had a full maintenance done on the fireplaces and furnace. He was awesome. I won’t use anyone else.”
“Excellent service. Andy had a spare Carrier inducer with him which saved us time.”
“Was very prompt to respond to our issues. Technician was scheduled for the day following my initial call.”
“Very professional heating company. Price is reasonable, excellent work.”
“Highly recommend this company. It was a pleasure dealing with Shawn and Nelson.”
“Professional and courteous technicians with attention to detail and customer needs.”
“Always great, friendly service. Serviced the hot water on-demand system. Honest and informative. Thanks!”
“Speedy response time, honest, and professional service from start to finish.”
Why Greater Vancouver Trusts ROMA Heating & Cooling
ROMA Heating & Cooling has installed, repaired and maintained heating and cooling systems across Metro Vancouver since 1999. Our team are TSBC-licensed gas fitters (Gas LGA0202903) and Red Seal-trained technicians — licensed, bonded and insured — and we back every job with upfront, flat-rate pricing and a 100% satisfaction guarantee. We hold a 4.8★ rating from 221+ Google reviews.
- Authorized for 30+ brands (Lennox, Carrier, Viessmann, Navien, Rheem & more)
- Upfront flat-rate pricing — no overtime or hidden fees
- Free, no-obligation estimates on new installations
- Locally owned & operated in Burnaby, BC
No Hidden Fees
Our service rates are transparent and easy to understand. You approve upfront, flat-rate pricing before we start — so you never get a bill you didn’t expect.
Licensed & Bonded
ROMA is a TSBC-licensed gas contractor (Gas LGA0202903). Our technicians are bonded, insured and Red Seal-trained — qualified for any heating or cooling system.
Free Estimates
We offer free, no-obligation estimates on new installations — furnaces, boilers, heat pumps, air conditioners, tankless and hot-water tanks.
ROMA Heating & Cooling is a trusted HVAC contractor serving Metro Vancouver since 1999. We specialize in furnace repair, heat pump installation, boiler services, air conditioning, and emergency heating solutions for residential, commercial, and government clients. Available 24/7, our certified technicians deliver fast, reliable, and affordable HVAC services across Greater Vancouver.