Alejandra R, Author at SupplyHouse Blog

HVAC technician using a clamp meter to test the wiring on a ceiling-mounted unit heater in a warehouse.

Heating & Cooling

How to Use a Multimeter for HVAC and Plumbing Diagnostics

A multimeter sits in every tech's bag, gets pulled out on every call, and gets used wrong…

Alejandra ROctober 28, 2026

Heating & Cooling

How to Set Up Outdoor Reset Control on a Hydronic Boiler

A boiler running at 180 degrees F on a 45-degree day is like running a…

Alejandra ROctober 27, 2026

Electrician installing a duplex receptacle into an old-work box cut into an existing drywall wall

Electrical

Remodels Are Carrying Residential Electrical: Code Triggers and Old-Work Wins

The subdivision jobs are slowing down. The phone isn't. It's just a different customer on…

Alejandra ROctober 23, 2026

Fin-Tube Baseboard Heater Installed Along a Finished Wall.

Heating & Cooling

How to Install Fin-Tube Baseboard Heat

Baseboard is the most common hydronic heat emitter in residential construction for good reason. It's reliable, inexpensive, simple…

Alejandra ROctober 22, 2026

Heat pump mounted onto the wall of a house and covered in snow

Heating & Cooling

Cold-Climate Heat Pumps Are Going Mainstream. The Install Decides How They Handle January.

For years, the honest answer to "Will a heat pump keep up in the north?"…

Alejandra ROctober 22, 2026

Plumber holding a jetter nozzle in front of a gas-powered sewer jetter unit

Plumbing

The Jetter Boom: Why High-Pressure Water Is Winning the Grease, Sludge, and Ice Calls

Every service plumber knows the restaurant that calls back. The cable went through in ten…

Alejandra ROctober 21, 2026

Plumbing

How to Set and Maintain Correct Boiler Pressure

The pressure gauge on a boiler tells the whole story of a hydronic system's health…

Alejandra ROctober 16, 2026

Heating & Cooling

How Condensing Boilers Work (And Why They’re Worth the Upgrade)

An older cast iron boiler with a 70% AFUE rating is sitting in the mechanical…

Alejandra ROctober 14, 2026

Man using baking soda to clean toilet bowl

Plumbing

How to Unclog a Toilet Without a Plunger

The plunger is gone. Maybe it walked off. Maybe the guest bathroom never had one…

Alejandra ROctober 13, 2026

Plumbing

How to Diagnose and Replace a Hydronic Zone Valve

A zone valve has one job: open when the thermostat calls and close when it doesn't. When it…

Alejandra ROctober 13, 2026

Alejandra R

How to Use a Multimeter for HVAC and Plumbing Diagnostics

How to Set Up Outdoor Reset Control on a Hydronic Boiler

Remodels Are Carrying Residential Electrical: Code Triggers and Old-Work Wins

How to Install Fin-Tube Baseboard Heat

Cold-Climate Heat Pumps Are Going Mainstream. The Install Decides How They Handle January.

The Jetter Boom: Why High-Pressure Water Is Winning the Grease, Sludge, and Ice Calls

How to Set and Maintain Correct Boiler Pressure

How Condensing Boilers Work (And Why They’re Worth the Upgrade)

How to Unclog a Toilet Without a Plunger

How to Diagnose and Replace a Hydronic Zone Valve

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