Morrill Heating and Cooling

03/11/2026

Most homes have carbon monoxide detectors, but many people don’t realize how limited the traditional ones actually are.

Standard residential CO detectors are designed to meet safety codes, not to warn you at the earliest signs of danger. Most of these detectors will NOT sound an alarm until carbon monoxide reaches 70 PPM and remains there for 60–240 minutes. That means dangerous levels of CO can be present in your home for hours before the alarm ever goes off.

Even lower levels of carbon monoxide can cause symptoms like headaches, dizziness, nausea, and fatigue. Prolonged exposure can lead to carbon monoxide poisoning, and higher levels can quickly become life-threatening.

For better protection, consider upgrading to a low-level carbon monoxide monitor that actually displays the CO levels in your home. These devices alert you to rising CO levels long before they reach the threshold of a standard detector, giving you time to react before it becomes dangerous.

As an HVAC company, we strongly recommend homes with fuel-burning equipment (furnaces, boilers, water heaters, fireplaces, or generators) have a carbon monoxide monitor that displays real-time levels, not just a basic alarm.

Carbon monoxide is colorless, odorless, and impossible to detect without the right equipment. Protect your family with the right detector — not just the minimum required one.

If you have questions about carbon monoxide safety or your heating system, feel free to reach out.

📞 Call or Text: 603-703-5520

03/04/2026

🌷 Spring isn’t far away! That means warmer days are coming — and now is the perfect time to get ahead of the rush and schedule your A/C cleaning for May or June.
Regular maintenance on your central air system and mini-splits makes a big difference:
✅ Improved efficiency (lower electric bills)
✅ Better cooling performance
✅ Cleaner, healthier air
✅ Fewer unexpected breakdowns
✅ Longer system lifespan
Over the winter, dust, debris, and buildup collect inside your system. A professional cleaning ensures your equipment is ready to run at peak performance before the summer heat hits.
Don’t wait until the first 85° day to find out your system isn’t ready! ☀️
Message us today to get on the schedule!

12/24/2025

Wishing all of our customers a safe and happy holiday season. Morrill Heating & Cooling would like to thank you for your patience, kindness, and continued support during a challenging year for our family. We truly appreciate your trust in us.

09/18/2025

🍂 Fall is here, and the chilly mornings are creeping in! How long will you hold off before turning on your heating system?

Now’s the perfect time to make sure your system is running properly, so you don’t get any surprises when you really need the heat.

✅ Schedule your heating system cleaning today and stay ahead of the cold!

📞 Call or text us at 603-703-5520 to book your appointment.

08/04/2025

Teaching the next generation the tricks of the trade.

06/19/2025

🇺🇸 Morrill Heating and Cooling is proud to support the Weare Patriotic Celebration with a prize donation to the Penny Sale!

Stop by, support a great cause, and you could win some awesome prizes — including one from us!

The Weare Patriotic Celebration starts this Friday at 5pm!

03/31/2025

🌞🔧 Get Your AC Unit Cleaned Before Summer! 🔧🌞

Summer is just around the corner, and the last thing you want is for your AC unit to fail when you need it most! Here's why getting your AC cleaned NOW is a great choice:

1️⃣ Prevent Breakdowns: Dirt, dust, and debris can build up over time, putting extra strain on your system and causing it to break down when you need it most. Regular cleaning keeps everything running smoothly!

2️⃣ Keep Air Clean & Fresh: A clean unit ensures the air circulating in your home is fresh and free from allergens, helping you breathe easy all summer long.

3️⃣ Avoid Surprise Visitors: Did you know? Mice and other small critters love to make their homes inside your AC unit during the off-season. Their nests can block airflow and cause serious damage. Don’t let them ruin your cool comfort! 🐭

Don't wait for the heat to hit—call us today to schedule your AC cleaning and make sure your system is in top shape for the summer! 🏖️❄️

📞 603-703-5520

03/22/2024

Don't let the snowy weather catch you off guard spring is just around the corner. Prepare your air conditioning system for the changing seasons by arranging a thorough tune-up and cleaning to ensure optimal performance.

Call or text - 603-703-5520

02/22/2024

We are currently experiencing technical difficulties with our phone line due to a nationwide cellular outage. Please contact us through Facebook Messenger or email at [email protected].

Thank you!

09/17/2023

When was the last time you had your oil tank filter replaced? Over time these filters become so dirty they can clog the lines leading to your furnace or boiler and stop them from working properly. Call or text today to schedule a full system cleaning. 603-703-5520

02/01/2023

Extreme cold weather can be hard on both you and your home. Here are a few tips to protect your home during low temperatures.

-Keep your house heated to a minimum of 65 degrees. The temperature inside the walls where the pipes are located is substantially colder than the walls themselves. A temperature lower than 65 degrees might not keep the inside walls from freezing.
-Check the location for the main water shutoff in your home. And refresh your memory on—or learn—how it works, in case you have to use it.
-Open hot and cold faucets enough to let them drip slowly. In severely frigid temperatures, keeping water moving within the pipes will help prevent freezing.

Avoid any outdoor activities on Friday and Saturday! Cold temperatures paired with the wind chill factor could lead to potentially life-threatening conditions outdoors. If you’re traveling, bring a winter emergency kit and inform others of your plans. Visit ReadyNH.gov for more extreme cold safety tips.

08/22/2022

Mini-splits are perfect for hot summer days and cool fall evenings. You can easily swap between heat and AC with just a flip of a button.