Boilers · Manufacturer
Lochinvar Boiler & Water Heater Service in Phoenix, AZ
From copper-fin boilers on pool decks to condensing plants in hospitals, one of the broadest boiler catalogs in the Valley.
Lochinvar, part of A. O. Smith, builds one of the broadest lines of commercial boilers and water heaters in the market, and Phoenix has all of it: Crest condensing boilers in central plants, Knight XL units in mid-size commercial buildings, Copper-Fin non-condensing boilers heating pools and older hydronic systems, and Armor water heaters serving hotels and multifamily. Bleuwave services Lochinvar equipment as an independent contractor, without dealer affiliation or factory authorization.
The breadth matters because the service needs differ. A Copper-Fin pool heater on a hotel deck and a Crest condensing plant in a hospital basement share a manufacturer and little else. Copper-fin equipment is simple, robust and sensitive to water flow and quality; condensing equipment is efficient, electronically controlled and sensitive to return temperature, condensate handling and combustion setup.
Product Families
Lochinvar Equipment We Encounter
Families and designations that appear on nameplates in the Phoenix market. Capacities, refrigerants and configurations vary by model and year; we verify from the nameplate on site rather than from a catalog.
| Family | Category | What it is |
|---|---|---|
| Crest | Boilers | Large condensing hydronic boilers for central plants. |
| Knight XL | Boilers | Mid-capacity condensing hydronic boilers, widely installed in commercial buildings. |
| Copper-Fin | Boilers | Non-condensing copper-fin-tube boilers and water heaters; a long-running family common in older Phoenix installations and pool heating. |
| Armor | Boilers | Condensing commercial water heaters. |
| Power-Fin, Intelli-Fin | Boilers | Additional copper-fin and condensing boiler and water-heater families. |
Crest, Knight XL, Copper-Fin and Armor
Crest boilers are large fire-tube condensing units with wide modulation and Lochinvar's SMART control platform for plant sequencing and building-automation communication. Knight XL covers the mid range with the same controls philosophy. Copper-Fin boilers and water heaters are the non-condensing copper-fin-tube family — decades of Phoenix pool heaters, hydronic boilers and water heaters carry the name. Armor water heaters bring condensing efficiency to domestic hot water. Power-Fin and Intelli-Fin extend the copper-fin and condensing lines.

Phoenix Service Patterns
On copper-fin equipment, low water flow and scale cause the characteristic problems: kettling, tube scaling, header and tube leaks, and high-limit trips. Pool heaters add chemistry — chlorine and pH out of range corrode copper heat exchangers quickly. On condensing units, scale on stainless exchangers, exhausted condensate neutralizers, blocked drains, combustion drift, sensor faults and sequencing problems are the recurring issues. Venting and combustion-air condition are verified on every service. All of it is worse when a boiler that idles from March to November wakes up in December with dry seals and drifted controls.
Repair, Maintenance and Replacement
Every service includes combustion analysis, safety verification, heat-exchanger inspection and, on condensing units, condensate system service and a sequencing review. Repairs cover burners, igniters, gas valves, blowers, controls, sensors, heat exchangers, pumps and venting. Pool heater service includes chemistry review and flow verification. Replacement is engineered to the load — including the copper-fin-to-condensing conversion that many Phoenix buildings are due for, with its return-temperature, condensate and venting implications addressed.
Straight Answers
Questions About Lochinvar Equipment
Our Copper-Fin boiler makes a rumbling noise. What is it?
Kettling — localized boiling from scale on the tubes or low water flow. It will eventually crack the heat exchanger. We verify flow, descale where practical and correct the water treatment or pump problem causing it.
Should we replace our Copper-Fin with a Knight XL or Crest?
Often it pays, but not as a straight swap. Condensing boilers need low return temperatures and condensate handling. We evaluate your system and show the projected savings against the installation cost.
Is Bleuwave a Lochinvar representative?
No. We service Lochinvar equipment as an independent contractor without dealer affiliation or factory authorization.
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