A fireplace insert transforms an old, drafty fireplace into a real heat source. Here's how gas and wood-burning inserts compare on cost, installation, maintenance, and everyday use — with local guidance for homeowners in Oshkosh, WI and Winnebago County.
Sealed direct-vent units that deliver instant, adjustable heat with the flip of a switch. Best for homeowners who want warmth and ambience without the work of tending a fire.
EPA-certified fireboxes that turn an open fireplace into a serious heater. Best for homeowners with access to firewood who want maximum heat and a real fire.
Pick a gas insert if you want push-button warmth, you don't want to handle firewood, and you value a clean, predictable experience. Gas inserts are also the right choice if your chimney can't accommodate a wood liner or if you want heat that works during a power outage without loading a fire.
Pick a wood-burning insert if you have reliable access to seasoned firewood, you want the highest possible BTU output for whole-room heating, and you enjoy the ritual of a real fire. Wood inserts also earn back their cost fastest when fuel is inexpensive or free.
Not sure which fits your home? Hildebrandt Fireplace LLC evaluates your existing fireplace, chimney condition, gas availability, and heating goals to recommend the right insert — and handles the full installation, liner, and finish work.
A fireplace insert is a self-contained firebox that slides into an existing masonry or prefab fireplace opening. Inserts turn an inefficient open fireplace into a sealed, high-efficiency heating appliance — typically 70–80% efficient compared to 10–20% for an open hearth.
Almost always yes, provided the existing chimney is sound and the opening is large enough. Every wood-burning insert install includes a stainless-steel liner sized to the insert to keep draft strong and safe.
Direct-vent gas inserts vent through a coaxial pipe that can run up the existing chimney or out a side wall, so you don't need a traditional chimney. B-vent and vent-free options are also available depending on local code and your home layout.
Modern EPA-certified wood inserts and sealed direct-vent gas inserts both deliver 70–80%+ efficiency. Wood usually costs less to run if you have access to firewood; gas wins on convenience and consistent heat.
Installed pricing varies by unit, venting, and site conditions. Call Hildebrandt Fireplace LLC at (920) 267-2614 for a free on-site assessment and quote in Oshkosh and Winnebago County.
Hildebrandt Fireplace LLC installs gas and wood-burning inserts throughout Winnebago County. Call for a free on-site evaluation and quote.
