Wall Hung Boilers
Find Out Why We’re One of the Most-Trusted Local Plumbing & Heating Companies in Manchester, NH
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Start Reducing Your Energy Costs Today With A Modern, Energy-Efficient Wall Hung Boiler.
At DM Plumbing and Heating in Manchester, NH, we specialize in the maintenance, repair, and installation of all residential boilers and forced hot water systems. To ensure efficient operation, we recommend that homeowners have their oil or gas boilers cleaned at least once a year. Regular boiler cleanings increase operating efficiency and reduce the risk of more costly service calls.
Wall hung boilers, also known as condensing boilers, come in two types. The first type is the combination or combi boiler, which is perfect for customers who need both hot water and whole-home heating from a single unit. Combination boilers can produce heat and hot water within one compact wall hung design. Unlike conventional boilers, a combination gas boiler heats water only when needed, making it both environmentally friendly and cost-effective.
The second type is the heating-only wall hung boiler. These boilers require an external water heater or an indirect water heater tied to the boiler as a zone.


How Our Process Works
If you’re unsure about which type of gas boiler to choose, or if you’re concerned about the costs of a new gas boiler installation, our accredited boiler installers at DM Plumbing and Heating in Manchester, NH, are here to assist you. Our straightforward gas boiler installation and replacement solutions provide all the information you need, delivered by fully qualified gas technicians with extensive boiler installation experience. They’ll ask you questions about your home and lifestyle, conduct a free site inspection, and recommend the most suitable gas boiler to meet your needs and budget.
It's a simple 3-step process:
Step 1
Fill out your details on our online gas boiler quotations form and submit it to our team.
Step 2
Arrange for our accredited boiler installers to conduct a complimentary home survey.
Step 3
Choose the boiler installers you prefer and schedule them to come and install your new gas boiler.
Homeowners in Manchester and across the Greater Manchester area can purchase a brand-new gas boiler with any of our accredited boiler installers.
Is Your New Boiler Due for Servicing?
After installing your gas boiler, you’ll typically receive a manufacturer’s warranty. However, many people overlook the fact that to maintain the validity of this warranty, the boiler needs to be serviced annually.
Even if your boiler seems to be functioning as expected, we highly recommend having it inspected and serviced.
During a boiler service our gas engineers will:
- Fire the boiler to ensure there are no internal faults.
- Remove the boiler’s casing to inspect and clean the internal components as needed.
- Conduct a flue evaluation to ensure the boiler’s emissions are safe.
- Perform a gas pressure evaluation and a gas tightness analysis to ensure there are no leaks.
After completing the service, our engineers will make sure your property is left exactly as they found it, as if they were never there. You will have a safe and efficient gas boiler once again.
Don’t compromise on your home’s comfort – invest in DM Plumbing and Heating’s professional water heater services today.
Our Services

Ready to Get Started
Contact DM Plumbing today for a free consultation. Let us help you with all your plumbing, heating, and remodeling needs.
How We Work
We follow a streamlined and thorough process to ensure your complete satisfaction. From the initial consultation to post-service support, we are committed to delivering high-quality workmanship and transparent service every step of the way.

Initial Consultation
We begin by understanding your needs and requirements through a detailed consultation. Whether it's a plumbing issue, heating system installation, or a remodeling project, we listen carefully to your concerns and goals.

Detailed Assessment and Quoting
Our experienced team conducts a thorough assessment of the site and provides a detailed quote. We ensure there are no hidden fees or surprises, giving you a clear understanding of the costs involved.

Professional Execution
Our skilled professionals carry out the work with precision and care. We adhere to high standards of workmanship, ensuring quality and reliability in every project.

Quality Assurance and Walkthrough
After completing the work, we conduct a thorough inspection to ensure everything meets our quality standards. We then walk you through the completed work, addressing any questions or concerns you may have.
What Our Clients Are Saying About Us
Steve Schack2024-07-29 Denis is the best around and I highly recommend him for any of your plumbing needs. He has taken on a multitude of projects for me including replumbing both the supply lines and drain lines in my entire duplex, multiple hot water heaters, repairs to my boiler, appliance installations and the list goes on. Denis offers very transparent pricing, he explains everything thoroughly BEFORE he does any work and every time he gets his hands on something, he does high quality work. He's punctual and efficient and I will continue to hire Denis for any and all plumbing projects I have in the future. Michelle Kondry2024-07-18 I used DM plumbing in the spring of 24’ for my kitchen reno. Denis was incredibly professional, knowledgeable, and kind. His work is clean and thorough. I will definitely be using him for any future plumbing needs Bryan Trask2024-07-17 Highly recommend Dennis and DM Plumbing and Heating. Dennis recently replaced our pressure pump system at a fair price. He provided exceptional service and showed up when he said he would.
Get Our Assisstance
For more information or to schedule a service, please call us at (603) 486-4146. We look forward to assisting you!