Shopping Cart
Your Cart is Empty
There was an error with PayPalClick here to try again
CelebrateThank you for your business!You should be receiving an order confirmation from Paypal shortly.Exit Shopping Cart

The Hot Water Haven

Go Green Go Tankless 404-839-8400

Web Store

Web Store

Propane Indoor 45-H LPG 6.8 GPM

$650.00 $725.00

Product Description      Great for larger homes 3 to 4 baths

The Eccotemp 45-HI is the indoor equivalent to the Eccotemp 45-H outdoor tankless water heater and is designed to supply hot water to a standard three bedroom, two bathroom home. The 45Hi-LP tankless water heater is for Liquid Propane indoor Installations only. For the Natural Gas model, please visit the 45Hi-NG. Rated at an already impressive 6.8 GPM, the 45-Hi is also split system adaptable, which can further increase efficiency and hot water delivery speed. With it's fully automated control system, the Eccotemp 45-Hi is the ideal choice for any standard sized home.


Ask about our bundle kits, you will recieve the unit and all venting need to install your unit add and additional $189 to retail price



45HI Manual (English)


45HI Manual (French)




Up to 140,000 BTU, 110V power supply


Vent and Inlet Measurements:


4 inch venting, 3/4 inch water inlet & outlet, 3/4 inch gas inlet


Flow Rate:


35 degree rise: 6.8 GPM

50 degree rise: 5.0 GMP

70 degree rise: 3.4 GMP

Additional Features


CSA certified for US and Canadian use

Liquid Propane Powered

Digital remote with simple controls and diagnostics

110 volt UL listed power cord

140,000 BTU

Energy Factor: 0.80

10 year warranty on heat exchanger

5 year warranty on parts

Energy rating: 82%

Hot water capacity range: 1.2 - 6.8 GPM

Maximum / Minimum gas rate: 19,800 - 140,000 BTUs


Attention*** If you add a vent kit to this order, here is the information:


4" Horizontal Stainless Steel Z-Vent Wall Hung Water Heater Vent Kit for Eccotemp 40HI-LP and 40HI-NG models. This vent kit is supplied with all the necessary components for a quick and seamless installation. It includes the following pieces:


(1) Termination Hoodwith backflow preventer

(1) 4" x 90 Degree Elbow

(1) 4" x 1' Pipe

(1) 4" x 1.5' Pipe

(1) 4" Wall Thimble

(1) 4" Appliance Adapter

Made of AL-294C stainless steel. This is Category II/III approved


For more details: 4" Horizontal  and Vertical Z-Vent Water Heater Vent Kit with Backflow

Item Added.
Adding Item.