Heating Services

Heating Installation in Nampa & the Treasure Valley

Ready for a new furnace or heat pump? ACFLEX Mechanical Services helps you choose the right system, sizes it correctly for your home and installs it right the first time.

Get an Estimate Call (208) 202-8297

Upfront Pricing Financing Available All Makes & Models Licensed & Insured

A New Heating System, Done Right

A new heating system is a big investment, and it should keep your family comfortable for the next 15–20 years. With cold Treasure Valley winters, the right equipment and a quality installation matter just as much as the brand on the box.

We walk you through your options in plain language, give you an upfront price and handle the installation from start to finish — so you can stop worrying about your heat.

Heating Systems We Install

Gas Furnaces

Powerful, dependable heat that handles the coldest winter nights. Available in standard and high-efficiency models.

Best for: Homes with natural gas that want strong, steady heat.

Heat Pumps

One efficient system that heats in winter and cools in summer. Modern cold-climate models work well in Idaho winters.

Best for: Homeowners who want heating and AC in a single system.

Dual Fuel Systems

A heat pump paired with a gas furnace. The system automatically uses whichever is most efficient for the outdoor temperature.

Best for: Maximum efficiency with backup heat on the coldest days.

Ductless Mini-Splits

Zoned heating and cooling without ductwork. Great for additions, garages, shops and rooms that never stay comfortable.

Best for: Homes without ducts, or problem rooms.

Is It Time for a New Heating System?

Your system is 15+ years oldOlder furnaces lose efficiency and become more likely to fail.

Repairs keep adding upFrequent breakdowns are a sign your money is better spent on a new system.

Heating bills keep risingAn aging system works harder and uses more energy for the same comfort.

Rooms never feel comfortableCold spots and uneven heat can mean the system is worn out or wrong-sized.

You're remodeling or adding onNew square footage often needs a system sized for the whole home.

You want heating and cooling in oneReplacing both? A heat pump or dual fuel system may save money long term.

Why Proper Sizing Matters

Bigger isn't better. An oversized furnace short-cycles, wastes energy and wears out faster. An undersized one runs nonstop and still can't keep up on the coldest nights. We size every system to your actual home — not a guess based on the old unit.

Home size, layout and insulation
Windows, sun exposure and air leaks
Existing ductwork condition
Your comfort goals and budget

Understanding Furnace Efficiency

Furnace efficiency is measured by AFUE — the percentage of fuel that becomes heat for your home. Here's how the two main options compare:

Standard Efficiency

80% AFUE

80¢ of every $1

Lower upfront cost
Often fits existing venting
A solid choice for milder use or tighter budgets

High Efficiency

95%+ AFUE

95¢+ of every $1

Lower monthly gas bills
Quieter, more even heat
Pays off over time in cold Idaho winters

Our Installation Process

In-Home Estimate

We look at your home, current system and ductwork, and talk through your goals.

Clear Options

You get recommended options with upfront pricing — no pressure, no surprises.

Professional Install

Our team installs your new system cleanly and to code, protecting your home as we work.

Test & Walkthrough

We test everything, show you how it works and make sure you're comfortable before we leave.

Flexible Financing Available

Get the system you need now with affordable monthly payments. Ask about utility rebates that may apply, too.

See Financing Options

Heating Installation Across the Treasure Valley

Nampa Boise Meridian Caldwell Kuna Eagle Star Middleton McCall Cascade

See our full Treasure Valley service area, or if your current system just needs a fix, visit our furnace repair page.

Heating Installation FAQs

How long does a furnace installation take?

Most straightforward furnace replacements are completed in about a day. Larger projects — like adding a heat pump, changing venting or modifying ductwork — can take longer. We'll give you a clear timeline with your estimate.

How much does a new heating system cost?

It depends on the type of system, efficiency level, your home's size and any ductwork or venting changes. After a quick look at your home, we'll give you upfront pricing on your options, plus financing if you need it.

Should I choose a furnace or a heat pump?

Both can work well in the Treasure Valley. Gas furnaces deliver strong heat on the coldest nights, while heat pumps handle heating and cooling in one efficient system. Dual fuel combines the two. We'll recommend what fits your home and budget.

Is a high-efficiency furnace worth it?

In a cold climate, often yes. A 95%+ AFUE furnace uses less gas for the same heat, so savings add up each winter. We'll help you compare upfront cost against long-term savings.

Do you offer financing for new systems?

Yes. Financing options are available for new heating installations. Visit our financing page or ask during your estimate.

Get Started

Ready for a New Heating System?

Tell us about your home and the ACFLEX team will help you find the right fit — with upfront pricing and no pressure.