A 2021 Reddit thread in r/Plumbing has a homeowner quoting “$1750 for Rinnai RU199iN, no tax total ~$3750, $300 energy star” for the unit plus a full installation, a real, specific number that’s worth understanding in context now that the unit itself is no longer sold new.
The Rinnai RU199iN is discontinued as of September 4, 2024, so there is no current manufacturer or major retailer new price to quote, historical pricing based on real buyer reports ran around $1,750 to $2,199 for the unit alone before installation, and its closest current replacement, the Rinnai RXP199iN, is priced around $1,735.53 on Amazon today. If your goal is buying a comparable unit right now rather than tracking down the specific discontinued model, the current-generation replacement is both available and similarly priced to what the RU199iN cost before it left the market.
Historical RU199iN Pricing
Based on real buyer reports and distributor documentation found during research, RU199iN pricing varied by source and time period. One Reddit user reported a $1,750 unit price (before tax) as part of a roughly $3,750 total installed cost including a $300 Energy Star rebate. Separately, Swanson Distributing’s discontinued product documentation lists a $2,199.00 reference price for the RU199iN, likely reflecting standard distributor list pricing rather than a promotional or discounted rate.
This spread, from roughly $1,750 to $2,199, reflects the kind of pricing variation common in HVAC and plumbing equipment, where list price, distributor discounts, and regional market conditions all affect what an individual buyer actually pays.
What the Current Replacement Costs
The Rinnai RXP199iN, the closest current-generation match with a built-in recirculation pump, lists for approximately $1,735.53 on Amazon as of 2026, comparable to historical RU199iN street pricing, while adding a feature (integrated recirc pump) that RU199iN owners often had to add separately.
The Rinnai RX199iN, without the built-in recirc pump, runs somewhat higher at approximately $1,538.78, making it the more budget-conscious option among Rinnai’s current Smart Sense condensing lineup in this capacity class.
Should You Look for a Used or New-Old-Stock RU199iN Instead?
If you specifically want the exact RU199iN model, whether to match existing equipment or for another specific reason, expect pricing to vary significantly and unpredictably through secondary channels like Facebook Marketplace, HVAC supply liquidators, or contractor overstock. Since the unit is officially discontinued, there’s no standard reference price to compare against, buyers considering this route should weigh the savings (if any) against the reduced certainty around warranty coverage and long-term parts availability.
Installation Costs Still Apply Either Way
Whether you’re sourcing a remaining RU199iN or buying its current replacement, installation costs remain a separate and significant part of your total budget. The 2021 Reddit report cited above shows installation and related costs (venting, gas line work, permits) adding roughly $2,000 on top of the unit price itself, a proportion worth keeping in mind regardless of which specific model you end up purchasing.
Rebates Are Worth Checking, But Confirm Current Availability
The $300 Energy Star rebate mentioned in that 2021 report reflects a specific program that was active at that time, rebate programs change frequently and shouldn’t be assumed to still apply without checking current, local program details directly with your utility provider or state energy office.
For the complete cost comparison including installation, see our installation cost guide.
The Bottom Line
The Rinnai RU199iN no longer has a current retail price since it’s discontinued, historical reports put it around $1,750 to $2,199 for the unit alone. Its direct current replacement, the RXP199iN, runs approximately $1,735.53, putting new buyers in a similar price range while gaining a built-in recirculation pump the original didn’t include.
Frequently Asked Questions
What did the Rinnai RU199iN cost before it was discontinued? Real buyer reports put unit pricing around $1,750, while distributor documentation lists a $2,199 reference price, reflecting normal variation in list price versus street price.
Can I still buy a new Rinnai RU199iN? No, it was discontinued by Rinnai on September 4, 2024. Remaining new-old-stock or used units occasionally appear through secondary marketplaces, but there’s no current manufacturer or major retailer price.
How much does the current replacement for the RU199iN cost? The Rinnai RXP199iN, the closest current-generation equivalent with a built-in recirculation pump, is priced around $1,735.53 on Amazon as of 2026.
Is the RXP199iN more or less expensive than the RU199iN was? It’s roughly comparable to historical RU199iN pricing, while adding a built-in recirculation pump that RU199iN owners often needed to purchase and install separately.
Are there rebates available for Rinnai’s current tankless lineup? Rebate availability changes over time and by location. Check current program details with your utility provider or state energy office rather than assuming a specific historical rebate still applies.
Does the price include installation? No, unit price alone doesn’t include installation costs, which based on real buyer reports can add roughly $2,000 depending on venting, gas line work, and permit requirements.
Should I buy a used RU199iN to save money? This depends on your priorities. Secondary market pricing varies unpredictably, and buyers should weigh any potential savings against reduced certainty around warranty coverage and long-term parts availability for a discontinued model.
Why did the price of Rinnai’s condensing tankless lineup change over time? Pricing reflects normal market factors including inflation, distributor pricing structures, and the addition of new features (like integrated recirculation pumps) in newer models.
Is the RX199iN a cheaper alternative to the RXP199iN? Yes, at approximately $1,538.78 versus $1,735.53 for the RXP199iN, the RX199iN is the more budget-friendly option if you don’t need the built-in recirculation pump.
Where can I check current pricing for Rinnai’s tankless lineup? Amazon and major HVAC supply retailers are reliable sources for current pricing on Rinnai’s active product lineup, since pricing can shift based on availability and promotions.
References
- Reddit r/Plumbing community discussion reporting real Rinnai RU199iN purchase and installation pricing, accessed July 2026
- Swanson Distributing discontinued water heater documentation listing reference pricing for the Rinnai RU199iN, accessed July 2026
- Amazon.com live pricing for Rinnai RX199iN and RXP199iN, accessed July 2026