Blog · Montgomery County, Maryland · Since 1985
Maryland HVAC and water heater guides
Comparisons written the way we explain them on a service call: the numbers that decide the job, the Maryland water, utilities and permits that change the answer, and a straight recommendation at the top.
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Water heating · 7 min read
Repair or Replace a Water Heater in Maryland: Age, Anode Rods, Expansion Tanks and the WSSC Permit
Water under the tank does not always mean a new water heater, and a dripping relief valve on a WSSC-served house is usually a pressure problem, not a tank problem. How we decide between a repair and a replacement.
Read the guide →Water heating · 6 min read
Gas vs. Electric Tankless Water Heater in Maryland: The Winter Inlet Problem and the 150-Amp Question
Electric tankless avoids the gas line and the vent, which is why it gets quoted. Then January WSSC water arrives at 45°F and a 36 kW unit, drawing 150 amps, delivers about one and a half showers.
Read the guide →Water heating · 8 min read
Heat Pump Water Heater vs. Gas Water Heater in Maryland: Basements, Rebates and Running Cost
A heat pump water heater is the cheapest way to heat water in a Maryland house on paper. Whether it is the cheapest in yours depends on the basement it sits in, the circuit beside it and the chimney the gas tank leaves behind.
Read the guide →Water heating · 9 min read
Tank vs. Tankless Water Heater in Maryland: The January Test, Hard Water and the Gas Line
A tankless unit that delivers two showers in August can deliver one and a half in January. How WSSC river water, Potomac-side hardness and a 1/2-inch gas line decide the answer in Montgomery County.
Read the guide →How these are written
Every guide is written by the people who install the equipment, and every standard, rebate or utility figure links to the agency or utility that publishes it. Where the honest answer is that you do not need the more expensive option, the guide says so.
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