What is the difference between a boiler and a water heater, and can they be used together?

• <div><p>No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.</p><p>While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.</p></div>

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Q: Can you switch from a tank to a tankless water heater?

• <div><p>Going from a tank to a tankless water heater is one of the most effective ways to lower your utility bills. The switch also frees up more space and ensures a consistent hot water supply, as the water is heated on an as-needed basis. It costs between <b>$5,400 and $7,400</b> to install a new tankless water heater. Most installation companies will also help dispose of your old water tank.</p></div>

Q: What happens if you install a water heater without a permit?

• <div><p>Installing a water heater without a permit can result in high fines&mdash;as much as hundreds of dollars per day, in some areas. It can also void your homeowners' insurance and cause problems when selling your home because it violates local building codes and safety regulations.</p></div>

Q: Can a heat pump water heater work in colder climates?

• <div><p>Yes, a heat pump water heater can work in colder climates but it&rsquo;s much more effective where it&rsquo;s warm. The reason is that the heat pump needs ambient warmth in the air to compress. The less warmth, the more compression required, thus using more electricity and offsetting the energy-efficient benefits. </p></div>

Q: Can you install an expansion tank anywhere?

• <div><p>No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There&rsquo;s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for. </p></div>

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Verified Reviews for Water Heater Service pros in Jesup, IA

*The Angi rating for Water Heater Service companies in Jesup, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

*The HomeAdvisor rating for Water Heater Service companies in Jesup, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

Last update on August 02, 2026

Reviewed in August 2026
My mother paid these guys (one was basically a kid) $150 to get a pool pipe unclogged. It was problem after problem after problem. They said they needed to cut the whole pipe to put a scope through to see where the blockage was. He kept trying to cut the pipe before the water was below the...
Roto Ruger Drain Cleaning
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Reviewed in June 2021
The company busted my water line after finishing his job, so I had to spend money to get it fixed and now he would not answer my calls.
Sunset Tree Service
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Reviewed in October 2019
Nic, was very professional. He was knowledgable and friendly. Installed my new water heater and explained things in detail. Thanks Nic.
Rain Soft of NE Iowa
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Reviewed in August 2019
We had several companies out that looked at our plumbing and also said they could do is the hot water. we even had another plumber come in and we wanted them to move our turn off valve to where we wanted to water softener all say did is move the turn off valve of foot up and said it couldn't be...
Rainsoft Of NE Iowa Inc
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Reviewed in February 2019
Josh Kneeland did a very good job checking the furnace and even replaced the water line & water-filter for the humidifier that is connected to the furnace for me.
Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc.
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Reviewed in October 2016
After another local company and the FEMA inspector differed about which appliances in my basement needed replaced and a second H&P company could not make an appointment for over 2 weeks, I contacted Fereday. They were my 3rd contact. They came the next day and inspected my furnace, including...
Fereday Heating and Air Conditioning
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Reviewed in April 2016
They tightened it up so tight that it cracked, and it caused a water leak to spring. We had another plumbing company come out and inform us of this.
Curran Plumbing Inc
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Reviewed in July 2014
Added it to his busy schedule in order to prevent water damage - some of the loose or recent missing shingles were down to the paper lining which would have leaked through nail holes. Explained that the price would be higher than the past as he had to use scaffolding due to the pitch of our...
H & L ROOFING
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Reviewed in September 2013
Mr Pins was very prompt. He was here the day and time he said he would be here. He and the <br /> electrician were here at the same time and they both worked well with each other. Ron had to replumb <br /> the clothes washer to be able to move the water tothe island I had installed. He was...
Ron's Plumbing & Heating & Air Conditioning
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Reviewed in March 2013
The fitting on our water booster pump cracked and was leaking water all over the basement floor. Of course, it was a Sunday. We called another plumbing company, and they wanted $175 just to come out. So, we called Mr. Rooter in Brandon. The response was immediate. Because it was a specialty...
Mr. Rooter Plumbing of Dubuque
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Find Water heater pros in Jesup

American Home Shield – Home Warranty

3.5(

5,688

)

Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Jesup, IA and surrounding areas

In business since 1971

Credit card accepted

"We pay yearly but we have this is included with our rental property. They are pretty good on most things. We had a hot water heater replaced and they did an excellent job on that. They are very quick on their response. They dont come out here. It is all done on the internet. I just like the idea that one time service charge is so much better than trying to hiring someone to come in. It is more about convenience. It pays for itself."

Recommended by65%of homeowners

Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Jesup, IA and surrounding areas

In business since 1990

Free estimates

L&S Plumbing is dedicated to providing our clients with the very best in service for your plumbing needs. We are a locally owned and operated company with over 16 years of industry experience. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. At L&S Plumbing, we're known for the quality of our work, commitment to outstanding results and the integrity of our business. We look forward to building long term relationships with our clients, and guarantee your satisfaction.

Recommended by100%of homeowners

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Apex Property Solutions

5.0(

)

Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Jesup, IA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

APS (Apex Property Solutions) is your one-stop solution for property services. We specialize in residential and commercial cleaning, including carpet and upholstery cleaning. Our expert team also handles wall mounting, general handyman services, home remodeling, and construction site cleanup. Whether you're looking to refresh your space with a deep clean or need help with home improvements, we’ve got you covered. At APS, we pride ourselves on top-quality work and exceptional customer service, ensuring your property always looks its best. Contact us today for a free consultation!

+10

Recommended by100%of homeowners

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Freedom Plumbing LLC

New to Angi

Water Heater - Install or Replace

Serving Jesup, IA and surrounding areas

In business since 2012

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7 neighbors recently requested a quote

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Picturesque Plumbing LLC

New to Angi

Tankless Water Heater - InstallWater Heater - Install or ReplaceWater Heater - Repair or Service

Serving Jesup, IA and surrounding areas

In business since 2023

Free estimates

Credit card accepted

Welcome to Picturesque Plumbing LLC, proudly servicing Merengo and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

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Water Heaters questions, answered by experts

Going from a tank to a tankless water heater is one of the most effective ways to lower your utility bills. The switch also frees up more space and ensures a consistent hot water supply, as the water is heated on an as-needed basis. It costs between $5,400 and $7,400 to install a new tankless water heater. Most installation companies will also help dispose of your old water tank.

Installing a water heater without a permit can result in high fines—as much as hundreds of dollars per day, in some areas. It can also void your homeowners' insurance and cause problems when selling your home because it violates local building codes and safety regulations.

Yes, a heat pump water heater can work in colder climates but it’s much more effective where it’s warm. The reason is that the heat pump needs ambient warmth in the air to compress. The less warmth, the more compression required, thus using more electricity and offsetting the energy-efficient benefits.

No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.

While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

The Jesup, IA homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.

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