Stay Warm All Winter with Kurt Zentner & Sons, Inc.
Home Heating Experts Serving Oshkosh, WI Since 1925
When the temperatures drop in Oshkosh, WI, you need a furnace you can depend on. For nearly 100 years, Kurt Zentner & Sons, Inc. has helped local homeowners stay warm with reliable heating repair, installation, and maintenance.
Our licensed technicians specialize in forced air furnaces and fast, honest furnace repairs. We also install and service boilers, radiant heat, and garage heaters. We’re the local team Oshkosh families trust to keep their homes comfortable all season long. We also provide air conditioning services to keep your home comfortable year-round.
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Our Heating Services
From furnace repairs to complete system replacements, we keep Oshkosh homes warm through Wisconsin’s harshest winters. Our team diagnoses problems quickly, explains your options clearly, and delivers dependable results backed by decades of experience.
Forced Air Furnace Repair & Installation
Forced air is the most popular way to heat Wisconsin homes, and it's our specialty. When your furnace stops working, blows cold air, cycles on and off, or starts making unusual noises, our technicians will find the problem and get your heat back on. We repair all makes and models of gas furnaces, including ignition, blower, thermostat, and airflow issues. If your furnace is aging or costing too much to run, we'll give you an honest recommendation on whether to repair or replace.
When replacement is the right choice, we install high-efficiency gas furnaces from trusted brands, including Heil, sized correctly for your home. We also offer seasonal tune-ups to keep your system running safely and efficiently all winter.
Hydronic Boilers
Hydronic boilers heat water and circulate it through pipes for consistent, even warmth throughout your home. We install and service high-efficiency IBC boiler systems for baseboard and radiant heating. They're quiet, comfortable, and energy-efficient options for Oshkosh homeowners.
Radiant Systems
Radiant heating warms your home from the floor up, without blowing air. We design and install in-floor radiant systems that provide even, draft-free heat and reduce airborne allergens. They're a great fit for basements, bathrooms, additions, and new homes.
Unit Heaters
Unit heaters are ideal for home garages, workshops, and pole barns. They deliver direct, powerful heat where your central system doesn't reach. We install and service gas and hydronic unit heaters that keep your space usable even in extreme cold.