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Heat pumps are quickly becoming a go-to HVAC solution in New Hampshire—and for good reason. These energy-efficient systems provide both heating and cooling, making them ideal for the state’s icy winters and humid summers. From year-round comfort and lower utility bills to reduced environmental impact, heat pumps offer a smart, sustainable alternative to traditional HVAC systems. Learn why The Oil Boys, LLC is the trusted choice for heat pump installation, service, and support across Grafton and beyond.
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Choosing between a forced hot water system and a hot air furnace can be a tough call for New Hampshire homeowners. This guide compares both heating methods—breaking down cost, comfort, air quality, and efficiency—to help you find the perfect fit. Whether you're building, upgrading, or replacing an old system, The Oil Boys, LLC is here to help you make an informed decision and stay warm all winter long.
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As summer approaches, many of us brace for the inevitable spike in energy bills due to increased air conditioning use. Traditional window AC units, while effective at cooling individual rooms, are notorious for their energy inefficiency. If you're tired of watching your electricity costs soar each summer, it's time to consider a more efficient and cost-effective solution: the General Electric Endure Heat Pump.
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Combination Boilers
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Combination boiler systems, also known as combi boilers, are a popular choice for homeowners looking to efficiently heat their homes and provide hot water on demand. In this blog post, we will explore what combination boilers are, how they work, and the benefits of using them in your home.
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4 Signs It May Be Time To Replace Your Boiler

Ideal Combination Boiler System

Most homeowners don't give a second thought to their boiler until it fails, leaving them chilled at the most inopportune time. Learn four warning signs it may be time to replace your boiler before it's too late.

 

1. You're already having the boiler fixed on a regular basis

 

A yearly service call is normal, but if you've had your boiler repaired a few times and something always seems to break, it's a red flag. If you continue the cycle of break-fix, you increase the overall amount of money you're putting into your boiler that could be put towards a new system. Most boilers are designed to last approximately 20-25 years depending on the type of boiler. While routine maintenance can extend the life of a boiler, if yours is close to the end of its life cycle, replacement is a better option. Wouldn't you rather pay for something efficient that works like it should than keep putting money into an aging boiler? 

 

2. You have to crank up the heat to get comfortable

 

When the boiler is operating normally, it heats your home to the desired temperature and responds quickly to temperature adjustments. When the boiler is not operating properly, your home may develop cold zones that never seem to warm up no matter how high you turn the thermostat. The boiler may not seem as responsive as it once did, now taking minutes rather than seconds to produce warmth. Finally, it may seem like your home never reaches the desired temperature. Things just aren't as warm as they should be. Not only does this make you less comfortable than you want to be, it's an expensive way to heat the home. Boilers aren't designed to be running all day, but as they age, that's exactly what happens. 

 

3. Your heating bills are going up

 

Sure, heating bills fluctuate with temperatures. If there's a major cold spell, you'll pay for it. Yet if things haven't been unusually cold and your heating bill gives you sticker shock, it's a sign your boiler is not operating efficiently. Have a technician out to inspect the system, but consider this your warning sign it's time to replace the boiler. 

 

4. Your boiler burns yellow instead of blue 

 

Boiler flames should always be blue. If the flame runs yellow, there could be a carbon monoxide problem. A buildup of black soot in an oil boiler is another indication of an underlying issue. Have a technician out immediately, since carbon monoxide exposure can be fatal. 

 

When you understand the warning signs of an old boiler, you can budget for and schedule the replacement before your existing unit fails. This will save you money on heating bills and the cost of an unanticipated emergency repair while helping you be more comfortable in the home. 

 

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By Abby O'Donnell June 6, 2025
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