How Much Does Boiler Installation Cost?

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Gas boiler installation costs $5,800 on average. However, the cost can vary anywhere between $3,600 to $8,000.
What affects boiler installation cost?
Boilers work by passing cold water through a series of heated pipes. Heat is then exchanged to warm the water, which is circulated around the home.
A new boiler installation cost can be complicated to determine because there are many different factors that go into purchasing and installing a gas boiler. Installation and maintenance is performed by some Plumbing companies and most HVAC companies — you might have to search reviews to see if they handle boilers.
Boilers do tend to undergo wear and tear over the years, requiring repair or replacement after a certain amount of time. Labor costs can also vary widely, from simple installation jobs of $100 to more complex installations costing up to $2,000.
There are different types of boilers that can be installed in the home, with each type working in a specific manner and having its own cost factors. Some of the most commonly used boiler types include:
System Boilers
For most average-sized homes, system boilers cost about $1,500 to purchase. They work by keeping high-pressure hot water in a sealed cylinder, where it can be dissipated to multiple taps within the home at the same time. This means that there is a minimal drop in water pressure regardless of the tap being used.
Combination Boilers
Coming at a price of $1,300, combination boilers are suited for apartments and studios. They work by instantaneously heating hot water that is coming from the main supply. This means that there is no delay in hot water, but the supply tends to be limited due to the lack of a storage tank.
Standard Boilers
Standard boilers are made for larger residences and buildings. They work by keeping a storage tank of hot water that heats the pipes that ran through it. Water can thus be supplied via a series of taps as needed. They typically cost about $3,500.
Cost Factors
The gas boiler installation cost will also depend on additional factors. For example, switching from an oil to a new gas boiler will involve an initial gas hookup cost of $750. The oil boiler will also need to be removed at a cost of $500-$3,000, and a chimney liner will need to be installed ($1,000).
A new boiler cost, including installation, averages $7,000 (but the cost can range between $4,000-$7,500).
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Most homeowners struggle with repairing or replacing their gas boilers. When making this decision, important factors to consider include:
Lifespan: most boilers may need to be replaced after every 15 years - it may be better to purchase a new unit if older than 15 years.
Frequency of repairs: boilers that are frequently breaking down may lead to high repair costs. With average repairs costing between $400-$500, a boiler that requires frequent repairs is better of being replaced.
Water heating bills: it may be a good idea to consider boiler replacement in order to save in the long run.