Flexible Installation 

  • Moveable combustion air intake (left/right) and ability to flex vent in existing B-vent 
  • Extra long pipe fittings with notched sides for easy gripping with wrench 
  • Only 5 moving parts – Fan, Bypass Valve, Pump, Gas Valve, and Damper 
  • Universal shared platform parts – Easily diagnose and service with common parts for all L-Series units

Key Features 

  • Innovative Labyrinth Heat Exchanger with 2 independent copper waterways for maximum heat transfer and minimal heat loss 
  • Built-in ECM variable speed, high efficiency boiler pump 
  • Built-in Illuminated Touchscreen Control Panel 
  • Outdoor reset technology increases efficiency by lowering water temperature automatically 
  • Wireless cascading using RF balances workload of each unit for longer life - No Wi-Fi required
  • Only Combi Boilers that can be cascaded for both space heating and domestic hot water 


  • ENERGY STAR(R) Certified - all models except 160K
  • Up to 96% AFUE and ASME-rated
  • Built-in Illuminated Touchscreen Control Panel
  • Only 5 moving parts - Fan, Bypass Valve, Pump, Gas Valve, and Damper

Energy Guide Details


  • AHRI B&W
  • CSA_C_US
  • CSA Low Leed Compliant
  • Energy Star


L-Series Super High Efficiency Condensing Combi Boilers


  • 10-Year Heat Exchanger
  • 5-Year Parts
  • 1-Year Labor

KwikComfort® Financing can help make your purchase even easier.
Ruud makes it easy to find a financing option that works for you! With many options and benefits available, KwikComfort Financing is the best way to get the home comfort you need without the wait.

  • Applications made easyWe'll help you avoid lengthy contracts, headaches and hassles.
  • Kwik credit decisionsYou'll get an answer to your application within minutes.
  • Fast credit for the futureFinance your Ruud equipment and anything you want to add later.
  • Reduced interest/fixed paymentsGet low interest and fixed monthly payments until the purchase is paid.
  • Minimum monthly paymentTake advantage of convenient monthly payments that fit your budget.
  • Deferred interest/no interestEnjoy interest-free payments as long as the balance is paid by the due date.