Welcome to the Lochinvar parts home page.  We are your one stop for all Lochinvar Parts.  We stock and can deliver next day most Lochinvar parts for Lochinvar Hot Water Heaters, Lochinvar Boilers & Lochinvar Heat Exchangers.  We are a premier supplier for all Lochinvar products.   Lochinvar Boilers, Lochinvar Hot Water Heaters and Lochinvar Tank Type Heaters have many variations and needs. They are often application specific size units and we do not wish to show them on the website.   Please give us a call to order Lochinvar product specific items. With our vast inventory of Lochinvar products and with our highly knowledgeable sales reps your Lochinvar questions and Lochinvar products can be properly sized. Thank you for visiting our Lochinvar parts online storefront.  HydronicsPartsPlus carries in stock all parts.   We have many Lochinvar PLT3400 products ready to ship.  Most orders are received next day.