There are really two types of gas tankless water heaters.
Condensing versus non condensing tankless water heaters.
We d say you can still get away with the non condensing tankless water heater if you live in tropical places in which heating water has less demand.
Since condensing tankless water heaters are generally more expensive than the non condensing this can be considered a push.
Both systems release negligible amounts of toxic vapors into the air which is a downside to using.
This is on top of what a tankless vs a tank system already gives you.
Tankless water heaters only provide hot water when needed saving you 40 on your energy bill.
What s the difference between condensing and non condensing tankless water heaters.
On the other hand condensing tankless water heaters may reduce the expenses for making it able to run overall.
Relatively non condensing tankless water heaters are less expensive compared to the other type.
They also produce more hot water at a more.
The non condensing models are usually less efficient and across all manufacturers have around 0 8 ef the condensing models are about 10 more efficient with around 0 9 ef rating.
When efficiency is key the condensing models outperform their kin coming in at 90 percent efficiency.
Typically you can save about 10 to 20 off of your gas bill compared to other traditional tankless water heaters.
Which in my mind is a good thing.
Condensing vs non condensing tankless water heater efficiency.