Oil to gas conversion with installation of new high efficiency condensing boiler and indirect hot water heater. 

Details of the installation: Viessmann Vitodens 200W with Weil McLain indirect hot water heater. The system is operating on outdoor reset control. Domestic hot water operates on domestic hot water priority. 

Property Type: 6 Family Brownstone
Property Size:
6,146 sq ft
Fuel: Gas
Boiler: Viessmann Vitodens 200W - 260,000 btu Boiler
Domestic Hot Water Production: Weil McLain Aqua Plus Indirect hot water heater
Other equipment:

  • Variable frequency drive pumps : taco bumble bee system pumps & grundfos alpha pump
  • Dirt mag to catch rust and dirt from the system
  • Spirovent air eliminator

System: Hot Water (hydronic)


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Before: existing steam boiler operating through a heat exchanger

Before: boiler

Attention to detail: When Absolute Mechanical works inside an apartment or living space we cover the entire working area to ensure there is not dust or dirt.