Propane Furnace Costs Explained: How to Budget for Your Goodman 3 Ton 14.5 SEER2 R‑32 Bundle and Full HVAC Install

Introduction

Hey folks — Tony the Trusted Tech here. If you’re shopping for a reliable central‑air and heating system, I want to walk you through why the Goodman 3 Ton 14.5 SEER2 R‑32 Bundle is a solid choice — and just as importantly, how the broader costs like propane furnace cost, furnace price, propane furnace prices, and cost to install propane furnace and ductwork factor into your decision. I’ll break things down step‑by‑step, in plain language, with the kind of straightforward analysis you deserve.

Why this Goodman bundle deserves your consideration

Let’s start with the product itself — the Goodman 3 Ton 14.5 SEER2 R‑32 bundle. I’m a tech who’s seen a lot of installs and spec sheets, so here’s what I like about it:

• The 14.5 SEER2 rating means it meets current efficiency minimums and gives you decent performance in cooling mode. According to Goodman’s website, their R‑32 GLXS4B series (which this bundle is based on) runs “Up to 14.5 SEER2” for 1½ to 5‑ton systems. (Goodman)

• The use of refrigerant R‑32 is significant — it’s more eco‑friendly than older R‑410A systems, which can be a selling point if you care about sustainability. 

• For homes sized approximately in the 1,500–1,800 sq ft range (typical for a “3 ton” system), this bundle provides capacity that aligns with many mid‑sized homes. (iwae)

• From an installer’s perspective: having the bundle means you’re buying the condenser + air handler (or matched coil) together, which helps with compatibility and warranty coverage.

So if you’re a homeowner who wants “good value, solid efficiency, and modern refrigerant,” this Goodman bundle is worthy of your shortlist.

Understanding Furnace & Heating Costs in Context

Now, even though the bundle I mentioned is for cooling (air conditioning) and air handling, the heating side of your HVAC system — especially if you're using a propane furnace — is going to factor heavily into your budget. So let’s dig into the numbers for furnace price, propane furnace cost, propane furnace prices, and the cost to install propane furnace and ductwork.

Propane Furnace Cost Basics

• According to HomeGuide, a new propane furnace costs on average $2,200 to $5,700 for installation (standard unit) and $3,500 to $7,400 for a high‑efficiency unit. (HomeGuide)

• They also report that installing a new propane furnace with ductwork can run from about $4,600 to $12,300. 

• Another source (Fixr) shows that for a “new propane furnace installed” the cost is typically $5,000 to $8,000, and if you also need new ductwork the total cost jumps to $6,900 to $14,000. (Fixr)

• For comparison, standard gas furnaces (not propane) plus ductwork tend to be in the ballpark of $4,400 to $11,800 according to HomeGuide. (HomeGuide)

So when you’re budgeting, assume your propane furnace price + installation + any duct upgrades is going to be in those higher ranges – sometimes into the five digits.

Why “cost to install propane furnace and ductwork” matters

Many homeowners overlook the ductwork question. But if your ducts are old, inefficient, undersized or incompatible with a new high‑efficiency furnace/AC system, you’re going to pay more. For instance:

• One estimate: new ductwork costs roughly $2,000‑$3,000 per ton of HVAC capacity (for a 3‑ton system, that means around $6,000–$9,000 just for ducts). (HVAC.com)

• Another source: new ductwork costs can run $2,000 to $5,000. (Angi)

So: even if your furnace itself is “just” $4,000 installed, the ductwork or integration costs could add thousands more.

Putting It All Together: What You Should Expect

Let’s imagine you are installing a full heating + cooling system in a typical mid‑sized home, using the Goodman bundle for cooling and a propane furnace for heating. Here’s how I’d break down your budget expectations, based on my experience and the data.

Step 1: Cooling side (Goodman bundle) cost

The Goodman bundle itself (just the equipment) in many cases is listed around $3,500‑$5,000 wholesale (depending on region and installer mark‑up). For example, one listing had a 3 Ton 14.5 SEER2 R‑32 AC system around $4,859 with bundle. (Superior Home Supplies)
On top of that, you’ll incur installation labor for the condenser, air handler/coils, refrigerant lineset, electrical connections, HVAC permit, etc. Depending on region and complexity, that might add a few thousand dollars.

So a realistic installed cost for the cooling side might be: $6,000 – $8,000 (equipment + labor) in many cases.

Step 2: Heating side (Propane furnace) cost

Let’s say you go with a quality propane furnace (mid‑efficiency to high‑efficiency). Based on the data: you’ll often see $4,000 to $6,000+ for installation. (Home Advisor) Add ductwork modifications or replacement (if needed) – maybe $3,000‑$7,000 more depending on scope. Doing like‑for‑like might be at the lower end; full duct overhaul is at the high end.

So for heating side you might budget: $7,000 – $13,000 (furnace + ductwork + installation) for many homes.

Step 3: Combined system budget

Summing up cooling + heating you are looking at:

• Lower‑scope scenario (good ducts already in place, straightforward install): maybe $10,000 – $12,000.

• Full upgrade scenario (ductwork required, high‑efficiency furnace, complex install): maybe $15,000 – $20,000+.

Some large homes or difficult installations may exceed that. One data point estimated for a full HVAC install with ductwork for a 2,000–2,500 sq ft home at ~$13,430 on average. (Modernize)

Key variables that drive cost

As your technician‑advisor (that’s me), here are the big levers that will push your cost up or down:

• Furnace efficiency: Higher AFUE (Annual Fuel Utilization Efficiency) means higher upfront cost.

• Ductwork condition: If your ductwork is leaky, undersized, or improperly configured, you may need major repairs or replacement.

• Home size and layout: Bigger homes or homes with complex layouts (multiple levels, many rooms, unusual geometry) raise cost.

• Access and installation complexity: Tight crawlspaces, long refrigerant lines, older wiring/gas lines needing upgrades, permits.

• Fuel type: Propane tends to cost more than natural gas in many regions; availability and tank installation can add cost.

• Brand and matching equipment: Choosing a matched system (furnace + coil + AC) helps efficiency and warranty, but may cost more than a mismatched or basic unit.

• Local labor rates and code requirements: Labor is a big part of the cost. One article noted labour could be $75–$100/hour for furnace installs. (NerdWallet)

Evaluating the Goodman Bundle Within That Context

Now, given all that, how does the Goodman bundle fit in—and how should you assess its value when paired with a propane furnace in your home?

1. Value for performance
   The Goodman bundle gives you a modern AC system with R‑32 refrigerant and 14.5 SEER2 efficiency at what appears to be a competitive price point. From an AC perspective, that’s a smart value.
   The blog post from The Furnace Outlet points out: “Proven performance · Modern, eco‑friendly refrigerant (R‑32) · 14.5 SEER2 efficiency that meets new standards · Quiet, reliable operation.” (The Furnace Outlet)
   So, if your heating side (furnace) is in good shape and your ducts are acceptable, you might focus investment more on the AC side now and budget for furnace work later.

2. Pairing with a propane furnace
   If you are using propane for heating, your decision tree should consider:

   • What is the current furnace’s age, efficiency, and condition? If the furnace is old or inefficient (say under 80% AFUE), upgrading could yield major savings.

   • Does your home already have ductwork compatible with the new AC bundle and new furnace? If ducts are in good shape, you’ll save a lot.

   • Are you committed to propane long‑term (fuel cost, availability, tank lease/ownership)? Choose a furnace that optimizes propane usage (higher AFUE) if so.

3. Budgeting properly
   Given what we know: if you buy the Goodman AC bundle for ~$4,000 equipment cost + ~$2,000‑4,000 install, you’ve got the cooling side under control. Then for the heating side, budget a separate line item of maybe $5,000‑10,000 depending on duct condition. Make sure you ask your contractor for a detailed breakdown of furnace prices, ductwork line items, labor, permits, etc.

4. Avoiding surprises
   The tech side of me has seen many homeowners surprised by duct upgrades, additional gas line work, tank installation, and electrical/control upgrades. For example: installing new ductwork alone can cost about $2,000–$5,000.

Or demoing and removing old equipment can add $60–$330 extra.
So always ask your contractor: “What assumptions are you making about ductwork, access, existing infrastructure, and are there contingencies built in?”

My Recommendation: How to Move Forward

Here’s what I suggest if you’re serious about going with this Goodman bundle and a propane furnace:

1. Get three quotes:

   • One for just the AC bundle installation (if your furnace and ducts are in acceptable shape).

   • One for a full replacement: AC bundle + propane furnace + ductwork (worst‑case scenario).

   • One for heating only upgrade (if you want to phase the work).

2. Ask for detailed line‐items: Include equipment cost, labor, ductwork, permits, old unit removal, propane tank work (if required), gas piping, controls, thermostat, etc. Knowing the breakdown helps you understand the “furnace price” component vs. “ductwork cost” component vs. “installation premium”.

3. Inspect the ducts: Have the contractor walk through the duct system. Are there long runs, leaks, inadequate insulation? The condition of your ductwork may determine whether now is the time to upgrade it. If you delay ductwork for later, you may lose out on optimal efficiency now.

4. Confirm fuel cost and availability: Since you’re going with propane, check local propane suppliers, tank leasing vs. owning, delivery frequency, and pricing trends. A furnace’s efficiency is only one part of your annual cost picture.

5. Check efficiency ratings and warranty terms for the propane furnace: Just like the AC side, a higher‑AFUE propane furnace (for example 95%+ vs 80%) may cost more upfront but yield better lifetime savings. Balance upfront cost vs long‑term heating bill reduction. (For example, one source cited a common furnace install/replace cost of ~$4,820–$9,350 including full installation. (WM Buffington Company) )

6. Plan for long term: If you plan to stay in the home for 10+ years, investing in efficient heating now makes sense. If you might move in 3–5 years, make sure your investment aligns with resale value (many buyers like high‑efficiency systems).

Final Word

So here’s the bottom line from Tony:

• The Goodman 3 Ton 14.5 SEER2 R‑32 bundle is a smart buy for the cooling side of your HVAC system — solid performance, modern refrigerant, good value.

• But don’t forget the “other half” of the picture — your heating side, especially if using propane, plus the hidden costs of ductwork and installation complexity.

• The phrase “propane furnace prices” or “furnace price” covers a spectrum — from the unit cost alone to full installation with ductwork and upstream upgrades.

• The “cost to install propane furnace and ductwork” is where many budgets balloon — always plan for ductwork contingencies.

• My recommendation: go into this with open eyes. Get detailed bids, ask the right questions, and think long‑term.