Boiler Heating


Air Conditioning & Heating
A Comprehensive Full Services Provider

A/C, Heat Pumps, Furnaces, Mini Splits, Boilers, Water Heaters

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Anne Arundel County


Howard County


York County


Boiler Installation Services

We provide Complete Boiler Replacement Services

# 1 – We meet with you at your home to gather all required information to provide you a free estimate to install your new heating boiler

One of our boiler heating equipment specialists will review your existing boiler and boiler system components. They will gather information from your existing system in order to provide you with a complete, accurate estimate to install a new boiler system. We gather such things as the heating size (in btus/hr), the fuel type, the type of flue piping, the piping sizes of the supply, return, and heating loops, whether you have a circulator or zone valve zoned system, if you have a zone controller, the type of terminal heating units (e.g. – baseboard or radiators), whether your existing boiler also heats your domestic hot water, and whether your home has the ability to allow you to convert to a more economic fuel type.

Once you approve our estimate after we have thoroughly explained the scope of work to be performed and the equipment to be installed, we then work around your schedule to pick a convenient day and time to schedule the work. Depending on the extent of the work to be performed, the work may be able to be completed in 1 or 2 days.


All-Air Systems replacing an old cast iron boiler

# 2 – Isolate, Drain, and Haul Away your Old Heating Boiler

We start your boiler replacement by isolating and draining the hot water out of the boiler and near boiler piping. Then, the boiler is disconnected from the water make-up, power and control wiring, and the flue piping. The boiler is then removed and hauled away.

We use drop cloths to keep your house clean. We also clean up after working and take measures to make sure the construction mess does not track through your home.

We wear boot covers

› We use drop cloths

# 3 – Installing the New Boiler with all New Boiler System Components and Startup

The new boiler is set in place and the work is done to connect the new boiler to the existing piping in the house.

Our boiler installation technicians are trained to install every necessary aspect for the new boiler.

New components and near boiler piping is installed. This includes:




zone valves


zone controller


expansion tanks


air scoops and vents


low water cut off (LWCO)


backflow preventer


water feeder



installing near boiler piping on a new boiler install

# 4 – Follow up

In a few weeks we follow up with you to make sure your new boiler system is operating correctly. If you have any concerns or questions about your new heating system, just give us a call and we will address them over the phone, or if it is easier, even schedule a no fee home visit. We want to make sure you completely understand your new boiler heating system so you feel comfortable and knowledgeable about how it operates.


All-Air Systems provides a 100% Satisfaction Guarantee with all new boiler heating installations

We Install Ultra High Efficiency oil & gas Boilers too

High efficiency heating boiler

Heating Only Boilers

Our boiler crews are experienced and trainted to install serveral types of high efficiency boilers that provide long lasting comfortable heating.

Oil Boilers – Boiler manufacturers have made advancements with oil boilers to increase their efficiencies. These boilers can reach up to almost 90% efficiency.

Gas / Propane Boilers – These boilers can reach efficiencies of up to 97%. With the use of advanced technology and outdoor reset, only the exact amount of heating is produced for your home. More of your heating dollar is actually used to heat your home instead of being sent out the flue.

Our boiler team has every aspect of high efficiency boiler installation covered.

We have been installing boiler heating systems all throughout central Maryland and York County Pennsylvania and have a proven track record of providing high quality craftmanship and properly installed hydronic heating systems.

We Install High-Efficiency COMBI Boilers

High-Efficiency Combi Boiler Installations

We also install the combi boilers. Combi boilers are called “combi” because they are a combination unit. They heat your home and make your domestic hot water for showers and faucets.

These boilers are able to achieve high efficiencies as a result of the condensing technology and re-use of the flue gases to again heat the water. The flue gases of combustion are actually used to provide further heat before exiting out the exhaust to the outside.

We are a certified dealer and installer for several brands of combi boiler systems, including:


Weil McClain


U.S. Boiler Co. / Burnham


Energy Kinetics

Bosch Greenstar Combi boiler installed

Importance of Boiler Maintenance – Protect your Investment

For more information on boiler maintenance, see our boiler maintenance page.

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