--- product_id: 30403858 title: "Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT" brand: "gasflex" price: "27305264₫" currency: VND in_stock: false reviews_count: 8 category: "Hi" url: https://www.desertcart.vn/products/30403858-tankless-gas-water-heater-excel-pro-natural-gas-6-6 store_origin: VN region: Vietnam --- # Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT **Brand:** gasflex **Price:** 27305264₫ **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT by gasflex - **How much does it cost?** 27305264₫ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/30403858-tankless-gas-water-heater-excel-pro-natural-gas-6-6) ## Best For - gasflex enthusiasts ## Why This Product - Trusted gasflex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Full description not available ## Images ![Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT - Image 1](https://images-na.ssl-images-amazon.com/images/I/51b29LhwLuL.jpg) ![Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT - Image 2](https://images-na.ssl-images-amazon.com/images/I/51RxHfGoSnL.jpg) ![Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT - Image 3](https://images-na.ssl-images-amazon.com/images/I/41C14jFHnUL.jpg) ![Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT - Image 4](https://images-na.ssl-images-amazon.com/images/I/51IwD6V82%2BL.jpg) ![Tankless Gas Water Heater Excel Pro NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem ,Noritz, Bosch FREE FLUE KIT - Image 5](https://images-na.ssl-images-amazon.com/images/I/41DRkClvkaL.jpg) ## Customer Reviews ### ⭐ Less than 1 Star *by R***N on October 5, 2016* If you are considering this product, I beg you to consider any other product other than this one. This is the worst product I’ve ever bought and the worst customer service I've ever experienced. I bought and installed the product to replace a broken 40 Gal residential unit. The installation manual for this product was practically useless but fortunately the install is pretty simple and straight forward as most of these units are. I got the unit installed and operating in about 4 - 5 total hours when done. The unit requires no calibration and seems to be working perfectly for about a week. On the second week the unit wouldn’t even turn on when you demanded hot water. I would have to turn off and turn on the faucet several times before the unit would spring to life. Progressively it got worse to the point where it only turns on 20% of the time when hot water is demanded. I checked the gas pressure and all the existing connections, they were all perfect. I began to suspect the unit was faulty. I contacted the company by going to the website. There is a phone number listed on their site that is never manned by a human. It goes directly to voicemail and ask you to leave a message. Over the course of 4 days, finally someone calls me back and leaves me a message to "check the gas line the unit could be starved for gas". (The unit is not starved for gas. The unit doesn’t run at all) I then tried to use the email address posted on their site. A tech responded with exactly the same thing. I responded 30 minutes later with 3 emails all including my phone number explaining the situation with my gas specs, pipe diameter and WC. I still haven’t gotten a response either by telephone or email. I had been an engineer for McDonald Douglas aircraft for 35 years and an independent contractor for 10. It doesn’t take a rocket scientist like myself to know if something is not working correctly, a child could figure it out. But somehow this company has no answers other than to "check your gas line". Please DO NOT PURCHASE ANYTHING FROM THIS COMPANY if you desire support of any kind. There are much better products out there with much better support. With this company There is NO SUPPORT at all. I can understand completely if a company inadvertently ships a defective product, but it is inexcusable is to ignore your customers when they need help. ### ⭐⭐⭐⭐ So far so good otherwise. *by E***O on September 20, 2017* Everything I got was as expected but, the gas connection for some reason I couldn't connect the gas line with standard valves from Home Depot or any local plumbing supply. I called the manufacturer and explained the problem and they promply sent me what I need. So far so good otherwise. ### ⭐⭐⭐⭐⭐ still kicking - no issues - *by L***S on November 8, 2017* 5 months and still rocking - love my new water heater - --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/30403858-tankless-gas-water-heater-excel-pro-natural-gas-6-6](https://www.desertcart.vn/products/30403858-tankless-gas-water-heater-excel-pro-natural-gas-6-6) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-21*