About This Service
Heating Installation in Middleburg, FL & Clay County
All Set Heating, Air & Plumbing is an HVAC contractor in Middleburg, FL providing heating system, heat pump, and furnace installation to homeowners across Clay County, Duval County, and Northeast Florida. Florida's climate makes heat pump systems the most energy-efficient choice for most homes — our technicians are trained on all major brands and system types, including variable-speed heat pumps and gas furnaces. Every installation is sized with a Manual J load calculation and backed by our 10-year parts warranty.
What's Included in Heating Installation
System Type Assessment
Heat pump or gas furnace recommendation based on your home.
Manual J Load Calculation
Proper sizing to avoid comfort problems and wasted energy.
Brand Selection
Carrier, Trane, Lennox, Rheem, Daikin, Goodman, Bryant, American Standard.
Full Installation
Air handler, heat pump or furnace, refrigerant lines, electrical, gas connections (as needed).
Thermostat Programming
Standard or smart thermostat setup.
10-Year Parts, 1-Year Labor Warranty
10-year parts and 1-year labor warranty included with every installation. Optional 10-year labor warranty available via Yeti Club membership.
System Options
Which Heating System Is Right for Your Home
Not every Clay County home gets the same answer. Here's an honest breakdown of the options and when each makes sense.
Heat Pump
The right choice for most homes. Provides both heating and cooling by reversing its refrigeration cycle. At 40°F, delivers 2.5–3.5 units of heat per unit of electricity — far outperforming a gas furnace. $4,500–$8,000 installed.
Ductless Mini-Split
Heats and cools a specific zone without ductwork. Ideal for home additions, Florida rooms, garages, or spaces where one zone runs hot or cold. Single-zone $3,000–$6,000; multi-zone from $8,000+.
Furnace Only
Provides heat only — no cooling. Only makes sense if the AC is separate and still in good condition. When both are due for replacement, a heat pump handling both functions is typically more cost-effective.
Our Process
How All Set Approaches Every Heating Installation
Load Calculation & System Assessment
All Set calculates your home's actual heating and cooling load — square footage, ceiling height, insulation, window placement, duct configuration, and local climate data. The result is a system sized specifically for your home, not a general estimate.
Honest Equipment Options
Clear options with real trade-offs explained. All Set installs Daikin, Carrier, Lennox, Trane, Goodman, and Bryant. The recommendation reflects what makes sense for your home and budget — not what provides the highest margin. You decide with full information.
Installation to Spec, Backed by 10 Years
Every installation completed to manufacturer specifications — refrigerant charge, electrical connections, ductwork sealing, airflow testing. Enroll in the Yeti Club middle tier and the labor warranty extends to match the parts warranty: up to 10 years.
Why Clay County Chooses All Set
10-Year Parts, 1-Year Labor Warranty
Every equipment installation backed by our 10-year parts warranty and a 1-year labor warranty — unmatched in Northeast Florida.
Written Estimates Before Any Work
You approve every job in writing. No hidden fees, no bait-and-switch pricing. Ever.
Insured in Florida
Fully HVAC contractor.
Financing Available
Ask about 0% interest promotional periods on new heating system installations.
Cost of the Wrong Installation
What the Wrong Heating Installation Costs Over Time
An oversized heat pump short-cycles during shoulder seasons — running only briefly without completing a full conditioning cycle, leading to poor dehumidification and uneven comfort. An undersized unit runs nonstop on the coldest nights without reaching the thermostat. Neither issue is obvious on installation day, but both become clear through higher energy bills and comfort problems over time.
Refrigerant lines charged incorrectly decrease efficiency and accelerate compressor wear. Unsealed ductwork connections leak conditioned air into unconditioned attic space. Electrical connections that don't meet code can void the manufacturer warranty entirely.
A properly installed system costs the same on day one. The savings become clear over the following decade. All Set performs the load calculation, completes the installation to spec, and guarantees the work for ten years.
Common Questions
Questions About Heating Installation
Does my home already have a heating system?
If your home has central AC, it probably includes a heat pump that provides both heating and cooling by reversing its refrigeration cycle. The same system that cools in summer heats in winter. If your home has a furnace and separate AC, those are two units — and a heat pump replacement handling both functions is often the better option.
How much does heating installation cost in Middleburg?
Standard heat pump: $4,500–$8,000. Single-zone mini-split: $3,000–$6,000. Multi-zone mini-splits from $8,000+. All Set provides a clear, itemized quote before any work begins. Financing available →
Is a heat pump or gas furnace better for Middleburg?
For most homes, a heat pump. Middleburg rarely drops below the 25–30°F range where heat pumps lose their efficiency advantage. A gas furnace rarely makes sense as a standalone system in this climate.
What size heat pump do I need?
Determined by a Manual J load calculation: square footage, ceiling height, insulation, window placement, and Florida's humidity load. If a contractor quotes a size without inspecting your home, that's a warning sign.
How long does heating installation take?
Most heat pump replacements finish in one day. Multi-zone mini-splits: 1–3 days depending on zones and complexity. All Set provides a timeline before starting.
What is the Yeti Club warranty?
The middle Yeti Club tier extends labor warranty to match parts — up to 10 years for both. The most comprehensive installation warranty in Northeast Florida. View membership details →
What efficiency rating should I look for?
For heating, look at HSPF2 (Heating Seasonal Performance Factor 2). Higher HSPF2 = lower operating costs. In Florida's brief heating season, the HSPF2 difference between mid-range and premium has less financial impact than SEER2 in cooling mode.
Do you install mini-splits for Florida rooms?
Yes. Ductless mini-splits are ideal for home additions, Florida rooms, garages, and spaces without existing ductwork. All Set installs single-zone and multi-zone systems. Call 904-206-8702 to discuss your space.
Ready to Schedule HVAC or Plumbing Service in Middleburg or Clay County?
Call 904-206-8702 to speak with a live dispatcher — same-day appointments available, 24/7, no answering service.
All Set Heating, Air and Plumbing provides AC repair, AC installation, heating service, plumbing, and commercial HVAC maintenance across Middleburg, FL, Clay County, and Northeast Florida.