Key takeaways
- A leaking storage tank is usually replaced with another storage tank in the same spot.
- Tankless needs the right gas or electric supply and a vent path. The closet does not always have them.
- Tankless does not solve a flood. It solves running out of hot water, when the house can feed it.
- You get the price for the option that fits the closet, after we look.
Start with the problem you actually have
If the garage is wet, you need the water stopped and a heater that holds water again. That is a storage replacement more often than a tankless conversion. The burst and leak pages are that job.
If the floor is dry and you run out of hot water every evening, tankless is a fair question. It is not a shortcut around a gas line or an electrical service that cannot carry it.
Side by side, without the brochure
| Storage tank | Tankless | |
|---|---|---|
| Best reason to choose it | The closet already fits one and the leak is the emergency | You run out of hot water and the utilities can feed the unit |
| Failure we see | Shell, nipples, elements, relief valve | Scale, codes on the controller, vent, or flow |
| Space | Floor space in a garage or closet | Wall space, plus vent and service clearances |
| Storm note | Electric tanks wait on power | Many units also wait on power for controls |
We will not tell you tankless is always cheaper to run. We do not have your bill, and we will not invent one.
What the closet has to allow
A garage in Florida Ridge often has room for either. A hall closet in Gifford sometimes has room for the tank that is already there and nothing else.
Gas tankless needs a vent that can leave the house and a gas supply that can feed it while other appliances run. Electric tankless needs a heavy circuit. If those are missing, the project is bigger than the unit on the wall.
Read the tankless service page and the fuel guide before you pick from a photo online.
Scale and salt air
Tankless heaters hate scale in the heat exchanger. A storage tank hides sediment at the bottom and rumbles. Different symptom, same local water.
Island air still eats fittings on both. A wall unit in South Beach does not get a free pass because it has no tank to rust through. If the storage tank is already leaking from the base, settle that on the bottom leak page before you redesign the closet.
EPA WaterSense fixtures lower how much hot water you ask for in a shower. They do not change which machine belongs in the closet. They do make a right-sized storage tank easier to live with if tankless will not fit.
We size the conversation to the baths you actually run together. Two showers at once is a different house from one bath and a dishwasher. Tell us the truth about morning routines. A unit that looks big on a box can still lag if the gas line is small.
Service access matters as much as the brochure photo. A tankless unit crammed above a closet shelf with no room to pull the cover will not get flushed, and then it scales up. If we cannot stand in front of it, we will not pretend the install is finished.
Price comes after that look. The number for a same-spot storage swap and the number for a tankless conversion are different jobs. You pick with both numbers in hand, not from a web menu.
A storage tank recovers after you stop using hot water. A tankless unit makes heat while you use it, and it stops when the flow stops. If your complaint is a morning rush, either machine can be the right one once the closet and the fuel are honest. If your complaint is water on the floor, the storage tank in place is the thing to deal with first.
We flush the conversation of slogans. Endless hot water is only endless when the unit is large enough and the supply can feed it. A small tankless unit on a weak gas line gives you a warm disappointment. We would rather leave the tank you have than install that.
Ask us to show the vent path and the shutoff while the tools are still in the truck. The decision is easier when you can see the wall the unit would hang on. A closet that cannot take the vent should stay a storage-tank closet, and we will say that out loud.
Noise is different too. A storage tank pops when sediment heats. A tankless unit clicks and the fan runs while water moves. Neither sound is a leak. Water where water should not be is the leak. Do not let a new noise talk you into the other machine.
Clearance above and beside the unit is part of a tankless install we will actually service later. A storage tank needs a pan and a path for the relief pipe. If your closet has one of those and not the other, that is the machine that belongs there.
We can quote both when both are possible. We will not quote tankless as a teaser number and then discover the gas line on the day of install. The look happens first. The price comes from the look. If the closet cannot feed a tankless unit, we will not invent a way to make the brochure fit. A storage tank that already fits is a complete answer.
Water on the floor?
Call with the street and the fuel type. You approve the price before we start.
Call (772) 555-0140Questions
Can you swap a leaking tank for tankless the same day?
Only if the vent, gas or electric supply, and wall space are already right. Most leak calls are not that house. We say which one you are standing in. A flood day is for stopping water and restoring a heater the closet can already feed.
Does tankless leak?
It can leak at fittings, the heat exchanger, or a failed valve. It does not fail as a rusted storage shell, but water on the floor is still water on the floor. Treat water on the floor the same way you would treat water under a tank. Find the start, then call.
Will tankless give hotter water?
It gives ongoing hot water when it is sized and fueled correctly. It does not make the shower hotter than the temperature you set. Set the temperature you want. The machine does not outrun that setting.
Which one do you recommend for a flood?
The one that stops the flood and matches the utilities already in the closet. For most wet-floor calls that is another storage heater. Stop the water with a storage heater that matches the fuel already in the closet.
Sources
Need help now?
Want this heater looked at?
Have the street ready. You approve the price before we start.