Oil-to-gas conversion

Switch from oil to natural gas for cleaner heat and lower maintenance

Converting from oil to gas means fewer deliveries, lower fuel costs, and a more efficient heating system. We coordinate everything from utility hookup to oil tank removal, and the work is done right the first time.

4.9
Oil versus gas

What changes when you move off oil

Running costs Lower fuel bills, no more deliveries

Natural gas usually costs less per unit of heat than oil in Connecticut, and a steady utility supply ends the cycle of scheduled fill-ups and emergency deliveries. We size a high-efficiency furnace or boiler to your home so more of every fuel dollar becomes heat.

The project A clear estimate, typically around $12,000

Most oil-to-gas conversions fall between $8,500 and $20,000, averaging near $12,000 — roughly $77 a month with financing. We give you an itemized estimate covering gas line work, tank removal, venting, and permits, so you see exactly where your dollars go.

Day-to-day Cleaner, quieter, lower-maintenance heat

We remove the old oil system, install the new gas unit, and bring every vent and control up to code. You get heat that runs cleaner and quieter, with far less hands-on upkeep than an aging oil system demands.

How it works

How an oil-to-gas conversion actually goes

Residential and Commercial Modern Natural Gas Heating Systems Installation Performed by Professional Caucasian HVAC Technician in His 40s.

The process

One team handles removal, hookup, and code from start to finish

A conversion is more than swapping a boiler. We remove the old oil system, install the new gas unit, and ensure every connection, vent, and control meets current code — then coordinate directly with your gas utility for line activation and the final inspection.

  • We handle the utility coordination, permitting, and install under one team — no gap in service, no chasing separate contractors
  • If your property doesn't yet have a gas line, we plan safe access as part of the project
  • Permits are pulled and inspections completed before we consider the job done

What's included

Your oil tank and chimney are handled correctly, not left as surprises

Two questions come up on nearly every conversion. We address both in the itemized estimate so there are no mid-project surprises: tank removal and chimney lining are spelled out before you commit.

  • Oil tank: safe, code-compliant removal and disposal whether it sits above ground or below, with related lines properly disconnected
  • Chimney: we assess venting requirements during the estimate and include liner work if your new gas system needs it
  • Both scope items appear in the written estimate — not as add-ons discovered after work begins
Our process

5 steps to a new system you can count on

Every installation follows the same proven process — whatever equipment you're upgrading — from your first call through years of reliable service.

Technician reviewing equipment with homeowner Step 1

In-Home Assessment

We visit your home, inspect the equipment you're replacing, and listen to what you want to change. You get a written, itemized estimate — no cost, no obligation.

  • Home walkthrough
  • Equipment inspection
  • Written estimate
  • Your current setup inspectedWe assess the equipment being replaced and how it connects to your home.
  • Home measured for proper sizingSquare footage, layout, and insulation all factor into the right capacity.
  • Comfort issues documentedTell us what bothers you — cold rooms, noise, running out of hot water — and we plan around it.
  • Itemized estimate with equipment, labor, and applicable rebatesYou get a clear cost breakdown before making any decisions.
Reviewing equipment options Step 2

Your Options

Based on the assessment, we present options that fit your home and budget — typically a good, better, and best choice — and explain the trade-offs in plain language.

  • Multiple options
  • Plain-language trade-offs
  • No pressure
  • Clear recommendation with pros, cons, and cost breakdownWe explain each option so you can make an informed decision.
  • Efficiency ratings explained for each optionWe show what higher efficiency costs up front and saves over time.
  • Right-sized to your homeProper sizing prevents short cycling, uneven performance, and wasted energy.
  • Your questions answered before you commitTake the time you need — the estimate stands either way.
Cost planning and financing Step 3

Rebates & Financing

We check every rebate your new equipment qualifies for through Energize CT — heat pumps can earn up to $10,000 — and line up financing so you see the real monthly cost before you decide.

  • Rebates identified
  • Financing available
  • 5-15 year terms
  • Energize CT rebate eligibility confirmed for your equipmentWe check the current programs so nothing is left on the table.
  • Financing terms from 5 to 15 years availableWe present multiple financing options to fit your budget.
  • Complete cost plan with rebate offsets where applicableYour quote shows the full picture including all available savings.
  • Monthly payment options calculatedWe break down what your monthly cost will be under each financing plan.
Technician performing installation Step 4

Installation Day

Our licensed technicians remove the old equipment and install your new system to manufacturer specifications and local code. Most installations are finished in a single day.

  • Licensed technicians
  • Code-compliant
  • Clean job site
  • Old equipment removed and disposed of properlyWe handle all removal and disposal of your old system.
  • New system installed to manufacturer specsEvery connection and component meets manufacturer requirements.
  • Connections updated as neededElectrical, piping, venting, or ductwork adjusted to fit the new system.
  • System tested and verified before we leaveWe run the full system and confirm proper operation before signing off.
Comfortable home with newly installed system Step 5

Walkthrough & Warranty

Before we go, we walk you through your new system — controls, settings, and what to expect. Then we register your manufacturer warranty and set up optional maintenance plans.

  • Hands-on walkthrough
  • Warranty registered
  • Maintenance plans
  • You see the system run and learn the controlsSettings, filters, and what normal operation looks like — you'll know how everything works.
  • Manufacturer warranty registered and activatedWe handle all warranty paperwork so you are covered from day one.
  • Follow-up checks scheduled as neededWe schedule return visits to verify everything is running properly.
  • Optional maintenance plans for long-term performanceRegular tune-ups keep your system efficient and extend its lifespan.
Compare before you choose
Not sure which heating system is right for your home?

Furnaces, boilers, and heat pumps heat your home in very different ways, and they cost different amounts to install and run. See how they stack up side by side before you commit.

One table covers installation cost, efficiency, comfort, and lifespan for every major heating system, plus which Energize CT rebates apply to each.

CT HIC License HIC #0644515 CT HTG License HTG #0303270-S1

Energize Connecticut — programs funded by a charge on customer energy bills.

What our customers say

Trusted by Connecticut families switching from oil to gas

4.9
Jerry Carter May 31, 2024
The guys were very informative and polite. They went through the house in a couple of hours and did a great job. They gave me other tips about my furnace as well.
Steven Wetmore May 23, 2024
Very good audit & weather stripping, the only thing they forgot was turning the furnace back on
Jennifer DiVincenzo May 10, 2024
Home Comfort Practice was a great experience and the staff did a great job in providing info to help our home save money with the rising cost of heating/cooling our home. Would recommend Home Comfort Practice to anyone seeing alternatives to help with resources they can provide to help with rising energy costs and ways to mitigate these costs to meet todays standards.
Investment Guide

Average conversion costs before rebates

Most oil conversions in Connecticut land between $8,500 and $28,000 depending on the path you choose. All ranges reflect Connecticut market data.

Common questions

Common questions about oil-to-gas conversion

How long does an oil-to-gas conversion take?

What if I do not have a gas line?

Is converting to gas cheaper than staying on oil?

What happens to my oil tank?

Do I need a chimney liner?

How much will it actually cost?

Are there rebates for oil-to-gas conversions?

Should I switch to a heat pump instead?

Home Comfort Practice HVAC specialist ready to help

Still have questions?

Call us at (203) 450-3000 or request a free estimate.

4.9

Ready to move on from oil?

Free estimate. No pressure. Licensed CT contractor (HIC #0644515, HTG #0303270-S1).

Energize CT Authorized Contractor Eversource Authorized BPI Certified Licensed HIC #0644515 BBB A+
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