Prism Hardscapes Fire Tables & Fire Bowls: The Complete 2026 Buyer's Guide

By the Outdoor Heat Direct fire feature team · Authorized Prism Hardscapes dealer · Reviewed September 2026

What Prism Hardscapes actually makes

Prism Hardscapes is a Cerritos, California fire feature manufacturer that produces gas fire tables, fire bowls, fire pedestals and fire boxes in cast glass fiber reinforced concrete. The company describes its process this way: "Each of our products have been hand-crafted using our custom patina finishing process, guaranteeing a one-of-a-kind creation with subtle variation."

That last phrase matters more than it sounds. A Prism unit is not a painted casting. The color goes on by hand, so two Tavola 4 tables in Pewter will not be identical twins — they will be siblings. Buyers who want a perfectly uniform factory finish are usually happier with a powder-coated aluminum or steel table. Buyers who want the look of poured architectural concrete on a patio choose Prism for exactly this reason.

Outdoor Heat Direct is an authorized Prism Hardscapes dealer, and every unit we ship carries the full factory warranty.

Material

GFRCGlass fiber reinforced concrete

Standard output

65,000 BTU/hr, NG or LP

Finishes

6Hand-applied patina

Factory warranty

2 yearsLimited, manufacturer defects

Why GFRC concrete, and what it means for you

GFRC is concrete with alkali-resistant glass fibers mixed through it instead of steel rebar. The fibers carry tensile load, which lets the casting be much thinner and lighter than solid poured concrete while resisting the cracking that thin concrete would otherwise show.

For a fire table this buys you three practical things. Thin walls mean a 48" table weighs in the hundreds of pounds rather than the thousands, so two people and a furniture dolly can place it. There is no internal steel to rust and spall the face from the inside out. And because it is cast, the edge profiles and surface texture are part of the mold rather than a veneer applied afterward — chips expose more of the same material, not a different substrate.

The trade-off is that GFRC is still concrete. It is porous, it will take on the character of its environment over several seasons, and in freeze–thaw climates the cover is not optional. See fire pit covers for the weatherproof cover that ships with most Prism units and for replacements.

The five series, compared

Browse all of them in the full Prism Hardscapes collection, or jump straight to Prism fire tables or Prism fire bowls.

Tavola fire tables: full size chart

Every Tavola stands 16" tall — coffee-table height, designed to sit inside a lounge seating group rather than replace a dining table. All models carry a 65,000 BTU burner except two: the Tavola 6, which uses a 60" T-shaped burner, and the Tavola 110, which uses an 80" Line burner — both rated at 90,000 BTU.

Prices are the natural gas / match-lit starting configuration. Electronic ignition, Ultra White and larger tanks add cost. See the Tavola collection for current pricing on every configuration. One naming note: the 60" × 50" model we list as the Tavola 7 also appears as the Tavola 8 in parts of Prism’s own documentation, so confirm the exact model with us when you order.

Note what the BTU column does not do: it does not scale with table size. A 36" Tavola 2 and an 80" Tavola 5 both deliver 65,000 BTU/hr. You are buying table surface and flame length, not more heat, until you reach the Tavola 6 or the Tavola 110. If you are working out how much output your space actually needs, our fire pit BTU sizing guide walks through the math.

Moderno fire bowls: full size chart

The Moderno is Prism’s tapered round bowl — wide at the rim, narrow at the base. It is the shape most often specified next to a pool, because the silhouette reads as sculpture when the burner is off.

Short bowls (12" – 16") sit below the sightline of seated guests and read as a fire feature in the middle of a conversation circle. Tall bowls (17" – 18") read as a standing object and work better against a wall or at the head of a pool. The Moderno 6 and the Moderno 1 are the clearest illustration of that split: both measure 39" across, but the Moderno 6 stands 14" tall and stays below the sightline, while the 18" Moderno 1 reads as a standing object in the same footprint. Compare the whole range in the Moderno collection.

Pentola pedestals & Portos tank-access tables

The Pentola is the answer for a small space. It is a raised pedestal with a bowl on top, so it occupies roughly two feet of floor while still giving a real flame at seated eye level.

If you are on propane and do not want a tank sitting beside the unit, there are exactly three Prism models with an integrated tank compartment: the Pentola 3, the Portos 58 and the Portos 68. Every other Prism model in propane needs the tank hidden somewhere else — which is what a tank enclosure is for.

The Portos also stand 22" tall rather than the Tavola’s 16", which puts them between coffee height and bar height. Measure your seat height before assuming a Portos will work where a Tavola would.

How to pick the right size

The number that actually decides the model is not the table’s footprint. It is the distance from the edge of the burner opening to the outside edge of the table — the lip. That lip is where drinks go, where feet do not get burned, and where your furniture has to clear.

Work the problem in this order:

1. Measure the clear floor area, then subtract 36" on every side you will walk or seat. A 48" Tavola 3 in a 10 × 10 ft space leaves about 33" of circulation per side — workable. In an 8 × 8 ft space it does not.
2. Count the seats you want facing the fire. Plan on roughly 30" of table edge per person. A 36" square gives four short edges and seats four; a 66" Tavola 4 comfortably fronts a full sectional.
3. Match the shape to the furniture, not the yard. Sectionals and facing sofas want a rectangle. Four separate chairs want a square or a round.
4. Check the lip before you commit. A Tavola 2 has an 8¼" lip; a Tavola 3 has 12". If glasses live on that table, the difference is not cosmetic.

Shopping by shape instead? We sort the entire catalog that way: round fire pits & fire tables, square, and rectangle & linear.

Key Valve vs Battery Spark vs PH-Ignite

Prism offers three ignition systems, and the one you choose changes the price more than any other option except size.

Added cost for PH-Ignite is the real delta between Prism’s match-lit and electronic-ignition SKUs, model by model: from about $1,230 on the Tavola 6 to about $1,610 on the Tavola 5. Battery Spark is listed in Prism’s own catalog rather than sold as a configurable option on our storefront, so ask us to confirm availability for your model before you plan around it.

PH-Ignite is Prism’s hot-surface electronic ignition. The factory lists it with a waterproof pilot connector, a weatherproof anti-corrosion enclosure and a 12 VAC inlet. On some models — the Embarcadero, for example — specifying PH-Ignite also raises output from 65,000 to 85,000 BTU/hr, so it is not purely a convenience upgrade.

Two things people get wrong about it. First, it needs power run to the unit, which means an electrician in the trench alongside the gas line; deciding on PH-Ignite after the patio is poured is expensive. Second, a key valve is not primitive — with no electronics in the weather, it is the system least likely to need service in year five.

The six finishes

Prism’s standard palette is Pewter, Natural, Café, Ebony, Coastal and Ultra — sold by most dealers, ours included, as Ultra White. Ultra is a premium finish and carries an upcharge over the other five.

• Pewter — mid grey, the closest to raw architectural concrete and the most forgiving of ash and water spotting.
• Natural — warm sand-grey; the safest match for travertine and light pavers.
• Café — warm brown; pairs with teak, ipe and composite decking.
• Ebony — near-black; highest contrast, and the finish that shows dust and pollen fastest.
• Coastal — lighter, cooler tone for white or bleached-wood settings.
• Ultra White — the brightest option, and a premium upcharge.

Because the patina is hand-applied, expect variation between units and within a single unit. That is the product working as designed, not a defect. If you are matching a fire table to a bowl bought a season earlier, order both at once.

Natural gas or propane?

Prism rates its burners identically on both fuels — 65,000 BTU/hr is 65,000 BTU/hr whether you are on a natural gas line or a propane tank. What differs is everything around the burner.

*Our own calculation, not a Prism-published figure: a 20 lb cylinder holds about 4.7 usable gallons ≈ 430,000 BTU (20 lb of propane × 21,548 BTU/lb), against a 65,000 BTU/hr burner. Real runtime is longer whenever the flame is turned down.

Prism does sell a conversion kit in both directions, so a unit is not permanently locked to one fuel — but conversion is licensed-technician work and it is far cheaper to order the right fuel type the first time. Filter the catalog by fuel: natural gas fire features or propane fire features. For the full trade-off — runtime, install cost, resale — see natural gas vs propane fire pits.

Clearances, gas pressure and installation

These figures come from Prism’s own installation manuals and they are stricter than most buyers expect.

Clearance, sides

4 ftTo any combustible surface

Clearance, above

6 ftTo any combustible surface

NG pressure

7" WC±1" water column

LP pressure

11" WC±1" water column

The 6 ft overhead clearance is the one that ends projects. A typical pergola beam sits 8 ft off the deck; a fire table 16" tall puts its burner surface at about 1.3 ft, leaving roughly 6.7 ft of air. That clears — barely — but a lower pergola, a shade sail, a market umbrella or an overhanging eave does not. Measure from the burner surface to the lowest combustible object above it before you order.

Prism’s manuals also state plainly: "THIS APPLIANCE IS FOR OUTDOOR USE ONLY." Not a screened porch, not a garage, not a three-sided enclosure.

On gas line sizing, Prism deliberately does not publish a pipe diameter. Their manual says your gas professional must determine pipe size from BTU input, supply pressure and run length. A 65,000 BTU/hr appliance at the end of a long run frequently needs a larger line than the one already feeding a grill — this is the single most common reason a new fire table burns low.

Prism states that it uses CSA-certified components and that installation must conform to local codes and the National Fuel Gas Code (ANSI Z223.1 / NFPA 54). Installation should be done by a licensed technician. Comparing these numbers against another brand? Our fire pit clearance reference table by brand puts the published figures side by side.

What is included in the box

• The GFRC body in your chosen finish
• Stainless steel burner and burner plate
• Key valve ignition (unless your unit was ordered with PH-Ignite or a Battery Spark configuration)
• Lava rock at full capacity — not fire glass
• A weatherproof cover

Two things are not included and surprise people. The propane tank is never included. And fire glass is an upgrade — the unit ships with lava rock. If you have seen Prism product photography with a bed of glittering glass, that is the upgrade, not the standard fill.

Worth adding at the same time: a wind guard if the unit sits anywhere exposed, since a 65,000 BTU flame in a crosswind looks like a 30,000 BTU flame.

What a Prism fire feature really costs

Budget in four layers, not one.

The pattern we see: buyers spend carefully on the unit and then get surprised by the trench. If you are running a new natural gas line, get that quote before you pick a model — it frequently costs more than the fire table does, and it may change which model makes sense.

Frequently asked questions