New Rules for Home Heating in Maryland: What Propane & Fuel Oil Customers Need to Know

Back when we first wrote about "new rules for natural gas drilling," the conversation in Maryland was about fracking. A decade later, the rules that actually matter to Southern Maryland homeowners have shifted completely — away from drilling and toward how homes are allowed to heat themselves in the first place. If you heat with propane or fuel oil, here's what's changed and, more importantly, what it means for your home right now.

Maryland's Clean Heat Rules, in Plain English

Maryland is phasing in two related policies aimed at reducing emissions from home heating: a Zero-Emissions Heating Equipment Standard (ZEHES) and a Clean Heat Standard (CHS). Together, they set a long-term timeline that steers new heating equipment sales toward electric heat pumps and puts new requirements on fuel suppliers rather than on homeowners directly.

The Clean Heat Standard doesn't regulate homeowners at all — it applies to fuel providers like gas utilities, and oil and propane companies, requiring them to gradually help customers adopt cleaner options such as weatherization and efficiency upgrades over time. The ZEHES side is the one that eventually touches equipment: it sets emissions limits on newly manufactured furnaces, boilers, and water heaters, with full compliance expected by the mid-to-late 2020s and a broader phase-out of fossil-fuel heating equipment sales by 2035.

What This Does NOT Mean for You Today

This is the part we want to be very clear about: nothing in these rules requires you to rip out a working oil or propane system. If your current furnace, boiler, or water heater is running fine, you can keep using it and keep having it serviced and filled exactly as you do now. The rules affect what new equipment can be manufactured and sold going forward — not what's already installed in your home.

Where it will eventually matter is the day your system needs to be replaced. Once the standards are fully in effect, a straight swap for another fossil-fuel furnace or boiler may no longer be an option, and replacement systems will likely need to meet zero-emissions requirements. That's a "someday" issue for most households, not a "this winter" issue — but it's worth knowing about as you plan ahead for an aging system.

Natural Gas Isn't Getting a Free Pass, Either

It's worth noting these changes aren't just about propane and oil. Maryland regulators have also been revisiting the policy that lets gas utilities extend new pipelines to homes and developments at little or no upfront cost to the customer, with those costs instead spread across the entire ratepayer base. Consumer advocates argue that policy leaves a shrinking pool of natural gas customers on the hook for decades of pipeline expansion as more homeowners switch to electric heat pumps. That debate has been playing out at the Public Service Commission throughout 2026, and it's a reminder that no single heating fuel in Maryland is being left out of this transition.

What We're Watching For You

At SJ Johnson, our job is to make sure you're never caught off guard, whether that's an empty tank in January or a change in state policy that affects your heating system. A few things we're keeping an eye on so you don't have to:

• Final MDE rulemaking timelines for ZEHES and CHS compliance
• Any rebate or incentive programs that offset the cost of efficiency upgrades or eventual equipment replacement
• How the evolving gas line-extension policy affects propane's cost position for homes off the natural gas main
• Continued availability and pricing for propane and heating oil across Calvert, St. Mary's, Charles, Prince George's, and Anne Arundel Counties

If you're weighing whether to repair or replace an aging system, or you just want to understand how these changes might affect your household down the road, give us a call at 410-257-2515. We'll give you a straight answer, not a sales pitch — that's how we've built relationships with Southern Maryland families for over 25 years.